{"title":"400G DAC Cables","description":"\u003cp\u003e400G passive DAC cables in three form factors: QSFP-DD, coded for Cisco, Arista and NVIDIA\/Mellanox Spectrum; QSFP112, including the NJAAKK-N911 and LMTQF022-SD-R stacking cables for DGX Spark, plus the 2-pack and 3-node ring kit; and 400G breakouts, QSFP-DD to 2×200G and 800G OSFP to 2×400G. 0.5 m to 3 m, lifetime warranty, shipping from Knoxville, Tennessee.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOther speeds:\u003c\/strong\u003e \u003ca href=\"\/collections\/25g-dac-cables\"\u003e25G\u003c\/a\u003e · \u003ca href=\"\/collections\/100g-dac-cables\"\u003e100G\u003c\/a\u003e · \u003ca href=\"\/collections\/200g-dac-cables\"\u003e200G\u003c\/a\u003e · \u003ca href=\"\/collections\/800g-dac-cables\"\u003e800G\u003c\/a\u003e · \u003ca href=\"\/collections\/dac-cables\"\u003eAll DAC cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eNew to DAC? \u003cstrong\u003e\u003ca href=\"\/pages\/dac-cables-guide\"\u003eRead our DAC Cables Guide →\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"nvidia-mellanox-mcp7y00-n002-compatible-800gb-s-osfp-to-2x400gb-s-osfp-passive-breakout-dac-cable-2m","title":"MCP7Y00-N002 NVIDIA\/Mellanox Compatible 800Gb\/s OSFP to 2x400Gb\/s OSFP Passive Breakout DAC Cable - 2m","description":"\u003cp\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e The MCP7Y00-N002 NVIDIA\/Mellanox-compatible cable is a 2-meter passive copper breakout (splitter) DAC that splits one 800G twin-port OSFP port into two 400G OSFP connections, for linking an NDR InfiniBand switch such as the Quantum-2 QM9700 to two 400G NDR ports, such as ConnectX-7 OSFP adapters, in the same or an adjacent rack. It is coded to work in NVIDIA equipment that calls for MCP7Y00-N002. Resilient Tec sells it new, with a lifetime warranty and free US shipping from Knoxville, TN.\u003c\/p\u003e\n\u003ch2\u003eNVIDIA\/Mellanox MCP7Y00-N002 Compatible 800Gb\/s Twin-Port OSFP to 2x400Gb\/s OSFP Passive Breakout DAC Cable - 2 Meters\u003c\/h2\u003e\n\u003cp\u003eThis third-party passive breakout DAC cable is fully compatible with NVIDIA\/Mellanox MCP7Y00-N002, delivering an 800Gb\/s twin-port OSFP connection split to two independent 400Gb\/s OSFP ports. Engineered for InfiniBand NDR environments in cutting-edge AI supercomputers, HPC clusters, and hyperscale data centers.\u003c\/p\u003e\n\u003cp\u003eCompliant with MSA standards, it supports massive bandwidth (800G total, 2x400G PAM4) with ultra-low power and latency. Backed by our \u003cstrong\u003elifetime warranty\u003c\/strong\u003e and rigorous testing—save significantly vs. genuine OEM.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme Cost Savings\u003c\/strong\u003e: Affordable compatible for NDR deployments—scale AI superclusters without premium pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play\u003c\/strong\u003e: Hot-pluggable OSFP connectors (finned\/flat top variants) with pre-programmed EEPROM for seamless NVIDIA compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Power \u0026amp; Latency\u003c\/strong\u003e: Passive design (\u0026lt;0.5W total) for dense, efficient racks in power-hungry AI environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e: Fully tested.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse Cases\u003c\/strong\u003e: Splitter for multi-node GPU interconnects in NDR switches (e.g., QM9700 series), enabling 800G to 400G fan-out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate\u003c\/strong\u003e: 800Gbps total (twin-port NDR InfiniBand, split to 2x400Gbps, PAM4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors\u003c\/strong\u003e: 1x Twin-Port OSFP to 2x OSFP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2 meters (6.6 ft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type\u003c\/strong\u003e: Passive Twinax Copper (typically 26-30AWG)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption\u003c\/strong\u003e: \u0026lt;0.5W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e: IBTA NDR, OSFP MSA, CMIS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eProgrammed for full compatibility with NVIDIA\/Mellanox NDR ecosystems and MSA platforms, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNVIDIA Quantum-2\/QM9700 NDR switches (800G ports)\u003c\/li\u003e\n\u003cli\u003eNVIDIA ConnectX-7\/BlueField-3 (400G ports)\u003c\/li\u003e\n\u003cli\u003eOther OSFP NDR platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNeed different lengths, flat-top variants, or volume quotes? \u003cstrong\u003eContact us\u003c\/strong\u003e—we source advanced NDR interconnects for AI leaders.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does each end plug into?\u003c\/strong\u003e\u003cbr\u003eThe single 800G end goes into a twin-port OSFP cage on the switch. Each 400G leg goes into a 400G OSFP port, such as a ConnectX-7 OSFP adapter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCP7Y00-N002 or MCP7Y50-N001: which do I need?\u003c\/strong\u003e\u003cbr\u003eThe MCP7Y00-N002 splits one 800G switch port into two 400G links. The MCP7Y50-N001 splits it into four 200G links. Pick the one that matches the speed of the adapter ports on the other end.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy a DAC instead of optics?\u003c\/strong\u003e\u003cbr\u003eFor in-rack runs of a couple of meters, a passive DAC costs far less, draws no power and adds no optical latency. For longer runs between racks, use OSFP optics with fiber.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible cable or genuine NVIDIA: what is the difference?\u003c\/strong\u003e\u003cbr\u003eThis is a new third-party cable programmed (coded) to be recognized by NVIDIA\/Mellanox equipment that calls for this part number, at a fraction of the NVIDIA-branded price. Choose the genuine NVIDIA part only if your support contract or internal policy requires NVIDIA-branded parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat warranty and shipping come with it?\u003c\/strong\u003e\u003cbr\u003eResilient Tec's lifetime warranty. US standard shipping is free with no minimum, and orders typically arrive in 3 to 5 days.\u003c\/p\u003e\n\u003ch3\u003eYou Might Also Need\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/products\/mcp7y50-n001-mellanox-compatible-800g-osfp-to-4x200g-osfp-passive-breakout-dac-cable-1m\"\u003eMCP7Y50-N001 compatible, 800G OSFP to 4x200G OSFP breakout DAC\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/products\/mma4z00-ns400-compatible-400g-osfp-sr4-flat-top-rhs-transceiver-connectx-7\"\u003eMMA4Z00-NS400 compatible, 400G OSFP SR4 transceiver\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/collections\/dac-cables\"\u003eAll DAC cables\u003c\/a\u003e\u003c\/p\u003e\n","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":47923345424484,"sku":"MCP7Y00-N002","price":298.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/nvidia-mellanox-mcp7y00-n002-compatible-800gb-s-osfp-to-2x400gb-s-osfp-passive-breakout-dac-cable-2m_1_84da8497-cb24-4d0b-b25c-f918bdcdd56a.jpg?v=1793196718"},{"product_id":"nvidia-mellanox-compatible-mcp7h60-w002-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-2m","title":"MCP7H60-W002 NVIDIA\/Mellanox Compatible, 400G QSFP-DD to 2x200G QSFP56 Passive Breakout DAC Cable - 2m","description":"\u003ch2\u003eNVIDIA\/Mellanox Compatible 400G QSFP-DD to 2x200G QSFP56 Passive Breakout Direct Attach Copper (DAC) Cable - 2 Meters\u003c\/h2\u003e\n\u003cp\u003eThis third-party passive breakout DAC cable is fully compatible with NVIDIA\/Mellanox LinkX series (e.g., MCP7H60-W002 equivalents), providing a cost-effective fan-out solution: one 400G QSFP-DD port to two 200G QSFP56 ports. Perfect for hybrid AI training clusters, HPC environments, and hyperscale data centers mixing 400G and 200G infrastructure.\u003c\/p\u003e\n\u003cp\u003eEngineered to MSA standards, it supports full 400Gbps (split to 2x200Gbps, 8x50G PAM4 lanes) with ultra-low latency and power. Backed by our \u003cstrong\u003elifetime warranty\u003c\/strong\u003e and rigorous testing—save 70-90% vs. genuine OEM while enabling flexible, high-density scaling. New, in stock at Resilient Tec, with free standard shipping on all US orders.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive Cost Savings \u0026amp; Flexibility\u003c\/strong\u003e: Affordable breakout for bridging 400G switches to 200G nodes—ideal for evolving AI\/HPC setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play\u003c\/strong\u003e: Hot-pluggable connectors with pre-programmed EEPROM for seamless NVIDIA\/Mellanox compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Power \u0026amp; Latency\u003c\/strong\u003e: Passive design (\u0026lt;0.5W total consumption) for dense, efficient racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e: Fully tested in production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse Cases\u003c\/strong\u003e: Fan-out in multi-node GPU clusters (e.g., H100 to legacy), four-node DGX Spark \/ GB10 clusters, spine-leaf expansions, or hybrid InfiniBand\/Ethernet fabrics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate\u003c\/strong\u003e: 400Gbps (400GbE \/ NDR, split to 2x200Gbps HDR, 8x50Gbps PAM4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors\u003c\/strong\u003e: 1x QSFP-DD to 2x QSFP56\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLane Mapping\u003c\/strong\u003e: TX1-4 \/ RX1-4 to leg 1, TX5-8 \/ RX5-8 to leg 2 — each leg runs 200G CR4 (4 lanes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2 meters (6.6 ft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type\u003c\/strong\u003e: Passive Twinax Copper (typically 28-30AWG)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption\u003c\/strong\u003e: \u0026lt;0.5W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e: IEEE 802.3cd, SFF-8665, QSFP-DD\/QSFP56 MSA, CMIS compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference\u003c\/strong\u003e: NVIDIA sells this cable under the full OPN MCP7H60-W002R26 (26 AWG, 2 m); the family is documented as MCP7H60-W0xxRyy. Also sold as the 1 m \u003ca href=\"\/products\/mcp7h60-w001-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1m\"\u003eMCP7H60-W001\u003c\/a\u003e, 1.5 m \u003ca href=\"\/products\/mcp7h60-w01ar30-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1-5m\"\u003eMCP7H60-W01AR30\u003c\/a\u003e and 3 m \u003ca href=\"\/products\/mcp7h60-w003-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-3m\"\u003eMCP7H60-W003\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eProgrammed for full compatibility with NVIDIA\/Mellanox ecosystems and MSA-compliant platforms, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNVIDIA Quantum-2 QM9700\/QM9790 switches (400G ports)\u003c\/li\u003e\n\u003cli\u003eNVIDIA ConnectX-7 \/ ConnectX-6 adapters (200G ports)\u003c\/li\u003e\n\u003cli\u003eNVIDIA DGX H100\/A100 systems and multi-node setups\u003c\/li\u003e\n\u003cli\u003eNVIDIA DGX Spark and other GB10 systems (ASUS Ascent GX10, Dell Pro Max GB10, HP ZGX Nano AI Station) — switch-side breakout, one port to two nodes\u003c\/li\u003e\n\u003cli\u003eMikroTik CRS804-4DDQ and CRS812-8DS-2DQ-2DDQ 400G QSFP-DD switches\u003c\/li\u003e\n\u003cli\u003eOther QSFP-DD\/QSFP56 platforms (Arista 7800R, Cisco Nexus, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNVIDIA DGX Spark and GB10 Clustering\u003c\/h3\u003e\n\u003cp\u003eThis is the switch-side cable for a four-node DGX Spark or GB10 cluster. One 400G QSFP-DD switch port fans out into two 200G QSFP56 legs, and each leg feeds one Spark at a full, unsplit 200G. The Spark's cage is QSFP112, which accepts a QSFP56 plug, and the Spark runs 200G as 4x50G PAM4 — exactly what each leg of this cable carries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with MikroTik CRS804-4DDQ and CRS812 QSFP56-DD ports (set speed=200G-baseCR4 on lanes 1 and 5). Four DGX Sparks = 2 cables.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBreakout belongs on the switch end only.\u003c\/strong\u003e NVIDIA does not enable or validate port splitting on the DGX Spark's ConnectX-7, so a splitter at the Spark end will not give you two working links. Use this cable to fan a switch port out to two Sparks — never to fan a Spark out to two of anything.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen you need it, and when you don't.\u003c\/strong\u003e If your switch has a 400G port for every node — a MikroTik CRS804-4DDQ, for example — you can run one straight 200G QSFP56 DAC per Spark and skip breakout entirely. This cable is the right answer when the switch has fewer 400G ports than you have nodes (such as the CRS812-8DS-2DQ-2DDQ, with only two QSFP-DD ports), or when you want to keep switch ports free to grow past four nodes. Either way, set the switch port speed to 200G manually rather than relying on auto-negotiation, and plan on MTU 9000 with both logical halves of each Spark port driven in parallel — a Spark port that is only half-loaded tops out near 100Gbps.\u003c\/p\u003e\n\u003cp\u003eNot sure whether your build needs breakout or straight cables? \u003ca href=\"\/pages\/dgx-spark-interconnect-reference\"\u003eSee the DGX Spark interconnect reference\u003c\/a\u003e or \u003ca href=\"\/pages\/request-a-quote\"\u003esend us your node count and switch model\u003c\/a\u003e and we will confirm exactly what to buy before you order.\u003c\/p\u003e\n\u003cp\u003eNeed different lengths, 4x100G breakouts, or bulk quotes? \u003cstrong\u003eContact us\u003c\/strong\u003e—we specialize in high-bandwidth breakout solutions for AI workloads.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e📋 COMPATIBILITY DOCUMENTATION\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDownload comprehensive compatibility report: MCP7H60-W002_Compatibility_Report\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eGuide includes: Pre-tested compatibility matrix for NVIDIA Quantum-2 QM9700\/QM9790 switches, ConnectX-7 400G to ConnectX-6 200G breakout configurations, DGX Spark \/ GB10 switch-side breakout notes, EEPROM data and recognition protocols, QSFP-DD\/QSFP56 MSA compliance guidelines, fan-out implementation instructions.\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":47923345457252,"sku":"MCP7H60-W002","price":179.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/nvidia-mellanox-compatible-mcp7h60-w002-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-2m_1_b883d7c7-4468-433d-8aa9-15c146d9dced.jpg?v=1793196728"},{"product_id":"400g-qsfp-dd-dac-2m-extended-reach-nvidia-mellanox-compatible-download-comprehensive-compatibility-report","title":"MCP1660-W002E26 NVIDIA\/Mellanox Compatible 400Gb\/s QSFP-DD Passive DAC Cable - 2m","description":"\u003ch2\u003eNVIDIA\/Mellanox MCP1660-W002E26 Compatible 400Gb\/s QSFP-DD Passive Direct Attach Copper (DAC) Cable - 2 Meters\u003c\/h2\u003e\n\u003cp\u003eThis third-party 400G QSFP-DD passive twinax DAC cable is fully compatible with NVIDIA\/Mellanox MCP1660-W002E26, providing a reliable, low-cost alternative for ultra-short-reach connections in 400GbE Ethernet and InfiniBand NDR environments. Ideal for dense AI training clusters, HPC supercomputers, and hyperscale data centers.\u003c\/p\u003e\n\u003cp\u003eEngineered to MSA standards, it delivers full 400Gbps bandwidth (8x50G PAM4 lanes) with minimal power draw and heat. Backed by our \u003cstrong\u003elifetime warranty\u003c\/strong\u003e and rigorous testing—save 70-90% vs. genuine OEM pricing without sacrificing performance or compatibility.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive Cost Savings\u003c\/strong\u003e: High-quality compatible alternative—perfect for budget-friendly AI infrastructure scaling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play\u003c\/strong\u003e: Hot-pluggable QSFP-DD connectors with pre-programmed EEPROM for seamless NVIDIA\/Mellanox compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Power \u0026amp; Latency\u003c\/strong\u003e: Passive design (\u0026lt;0.1W consumption) for efficient, high-density racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e: Fully tested in production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse Cases\u003c\/strong\u003e: Intra-rack GPU-to-GPU, switch-to-switch, or node interconnects in multi-node AI clusters and cloud fabrics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate\u003c\/strong\u003e: 400Gbps (400GbE \/ NDR InfiniBand, 8x50Gbps PAM4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors\u003c\/strong\u003e: QSFP-DD to QSFP-DD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2 meters (6.6 ft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type\u003c\/strong\u003e: Passive Twinax Copper (26AWG)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption\u003c\/strong\u003e: \u0026lt;0.1W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e: IEEE 802.3ck, SFF-8665, QSFP-DD MSA, CMIS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eProgrammed for full compatibility with NVIDIA\/Mellanox ecosystems and MSA-compliant platforms, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNVIDIA Quantum-2 QM9700\/QM9790 switches\u003c\/li\u003e\n\u003cli\u003eNVIDIA ConnectX-7 \/ BlueField-3 adapters\u003c\/li\u003e\n\u003cli\u003eNVIDIA DGX H100\/B200 systems\u003c\/li\u003e\n\u003cli\u003eOther QSFP-DD 400G ports (Arista 7800R, Broadcom-based, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNeed shorter\/longer lengths, breakout options, or volume discounts? \u003cstrong\u003eContact us\u003c\/strong\u003e—we're your source for compatible high-bandwidth interconnects.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e📋 COMPATIBILITY DOCUMENTATION\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eDownload report: MCP1660-W002E26_Compatibility_Report - 400G QSFP-DD specs, EEPROM protocols, 2M extended reach.\u003c\/p\u003e\n\u003cp\u003e📋 \u003ca href=\"\/pages\/nvidia-mellanox-interconnect-compatibility-guide\"\u003eView the full NVIDIA \u0026amp; Mellanox Interconnect Compatibility Guide\u003c\/a\u003e for the complete tested model catalog.\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":47923345490020,"sku":"MCP1660-W002E26","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/400g-qsfp-dd-dac-2m-extended-reach-nvidia-mellanox-compatible-download-comprehensive-compatibility-report_1.jpg?v=1793145548"},{"product_id":"400g-qsfp-dd-breakout-dac-with-mellanox-nvidia-compatibility-download-compatibility-report-with-eeprom-data-msa-specs-and-implementation-guides","title":"MCP1660-W001E30 Mellanox Compatible, 400G QSFP-DD Passive DAC Cable - 1m","description":"\u003ch2\u003eMellanox Compatible 400G QSFP-DD Passive DAC Cable - 1 Meter\u003c\/h2\u003e\n\u003cp\u003eThis third-party 400G QSFP-DD Passive DAC cable is fully compatible with Mellanox MCP1660-W001E30, delivering reliable 400GbE connectivity for short-range ultra-high-speed networking applications up to 1 meter. Ideal for AI\/HPC clusters, enterprise networking, hyperscale data centers, and high-bandwidth Ethernet environments requiring ultra-low latency copper interconnect connectivity.\u003c\/p\u003e\n\u003cp\u003eBuilt to QSFP-DD MSA standards, it features QSFP-DD to QSFP-DD connectivity and pre-programmed EEPROM compatibility for seamless deployment with Mellanox\/NVIDIA networking platforms. Backed by our \u003cstrong\u003elifetime warranty \u003c\/strong\u003eand rigorous testing—enjoy significant savings versus genuine Mellanox OEM cables while maintaining reliable, high-performance connectivity.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive Cost Savings:\u003c\/strong\u003e Premium compatible DAC cables at a fraction of OEM pricing—ideal for scaling enterprise and AI networking environments affordably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Compatibility:\u003c\/strong\u003e Pre-programmed EEPROM enables seamless deployment with Mellanox\/NVIDIA networking platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable 400GbE Connectivity:\u003c\/strong\u003e Supports stable ultra-high-speed 400GbE networking for switches, servers, and storage environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Latency Passive Copper Design:\u003c\/strong\u003e Passive 30AWG Twinax construction minimizes latency and power consumption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized for Data Centers:\u003c\/strong\u003e Ideal for spine-leaf architectures, AI fabrics, and high-throughput Ethernet deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Short-Range Connectivity:\u003c\/strong\u003e Supports stable 400GbE transmission up to 1 meter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced EMI Design:\u003c\/strong\u003e Designed to minimize electromagnetic interference in dense networking environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate:\u003c\/strong\u003e 400GbE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type:\u003c\/strong\u003e Passive DAC (Direct Attach Copper) Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e QSFP-DD to QSFP-DD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 1 Meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire AWG:\u003c\/strong\u003e 30AWG Twinax\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 3.3V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e QSFP-DD MSA compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 400GbE compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"relative w-full overflow-visible\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp\u003eProgrammed for compatibility with Mellanox\/NVIDIA and MSA-compliant systems, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMellanox\/NVIDIA networking platforms\u003c\/li\u003e\n\u003cli\u003eNVIDIA\/Mellanox ConnectX adapters\u003c\/li\u003e\n\u003cli\u003eEnterprise Ethernet networks\u003c\/li\u003e\n\u003cli\u003eAI and HPC cluster environments\u003c\/li\u003e\n\u003cli\u003eSpine-leaf switching deployments\u003c\/li\u003e\n\u003cli\u003eHyperscale and cloud data center environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRequires compatible QSFP-DD ports on connected devices.\u003c\/p\u003e\n\u003cp\u003eNeed different cable lengths, compatible DAC\/AOC options, or bulk quotes? \u003cstrong\u003eContact us\u003c\/strong\u003e—we specialize in high-performance networking solutions for AI, HPC, and data center environments.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e📋 COMPATIBILITY DOCUMENTATION\u003c\/p\u003e\n\u003cp\u003eDownload comprehensive compatibility report: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/MCP1660-W001E30_Compatibility_Report.pdf?v=1781911195\"\u003eMCP1660-W001E30_Compatibility_Report\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eGuide includes: Pre-tested NVIDIA\/Mellanox compatibility matrix, 400G QSFP-DD specifications, EEPROM protocols, MSA compliance data, implementation guidelines.\u003c\/p\u003e\n\u003cp\u003e📋 \u003ca href=\"\/pages\/nvidia-mellanox-interconnect-compatibility-guide\"\u003eView the full NVIDIA \u0026amp; Mellanox Interconnect Compatibility Guide\u003c\/a\u003e for the complete tested model catalog.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":48428973391972,"sku":"MCP1660-W001E30","price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/400g-qsfp-dd-breakout-dac-with-mellanox-nvidia-compatibility-download-compatibility-report-with-eeprom-data-msa-specs-and-implementation-guides_1.jpg?v=1793145809"},{"product_id":"njaakk-n911-400g-qsfp112-passive-dac-stacking-cable-0-5m-nvidia-dgx-spark","title":"NJAAKK-N911 QSFP112 400G-Rated Passive DAC Cable, 0.5m – Stacking Cable for NVIDIA DGX Spark, ASUS, Dell, HP \u0026 Lenovo GB10 (NJAAKK-0006 Equivalent)","description":"\u003cp\u003e\u003cstrong\u003eThe DGX Spark stacking cable, in stock and shipping same day.\u003c\/strong\u003e A 0.5 m QSFP112 passive DAC built to the specification of the Amphenol NJAAKK-0006 that NVIDIA lists as approved for DGX Spark. Plug it into the ConnectX-7 QSFP ports on two Sparks and they are linked, with no switch needed.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e$174\u003c\/strong\u003e. New, with a lifetime warranty\u003c\/li\u003e\n\u003cli\u003eFree U.S. shipping; ships same day on orders before 5 PM ET from Knoxville, Tennessee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e31-day returns, return shipping on us\u003c\/strong\u003e (\u003ca href=\"\/policies\/refund-policy\"\u003edetails\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValidated on ConnectX-7\u003c\/strong\u003e in DGX Spark (\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/NJAAKK-N911_Compatibility_Report_a990a420-cf69-49bb-81dd-3b4a58b38693.pdf?v=1789753527\"\u003ecompatibility report\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eFits NVIDIA DGX Spark, ASUS Ascent GX10, Dell Pro Max GB10 and HP ZGX Nano AI Station\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e→ \u003cstrong\u003e\u003ca href=\"\/pages\/dgx-spark-gb10-guide\"\u003eDGX Spark \u0026amp; GB10 Clustering Guide\u003c\/a\u003e\u003c\/strong\u003e: which cable to buy at two, three and four or more nodes, approved part numbers, and real-world throughput.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat You Are Buying\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart number:\u003c\/strong\u003e NJAAKK-N911 \u003cbr\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e 0.5 m (1.6 ft)\u003cbr\u003e\u003cstrong\u003eEquivalent to:\u003c\/strong\u003e Amphenol NJAAKK-0006 (0.5 m) and the Luxshare LMTQF022-SD-R\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e QSFP112 passive direct-attach copper, 400G-rated\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso listed as:\u003c\/strong\u003e \u003ca href=\"\/products\/lmtqf022-sd-r-400g-qsfp112-passive-dac-stacking-cable-0-5m-nvidia-dgx-spark-validated-equivalent\"\u003eLMTQF022-SD-R equivalent\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a compatible cable supplied by Resilient Tec. It matches the same QSFP112 passive copper specification and works normally in DGX Spark and GB10 systems.\u003c\/p\u003e\n\u003cp\u003eOn a DGX Spark each ConnectX-7 QSFP port runs at up to 200 Gb\/s (NVIDIA's port limit), so the link runs at 200 Gb\/s even though the cable is 400G-rated.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePart Numbers You May Be Searching For\u003c\/h2\u003e\n\u003cp\u003eSeveral part numbers circulate for the DGX Spark stacking cable. They are one cable specification from two manufacturers in two lengths. If you are shopping for any of them, this 0.5 m cable does the same job.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003cth\u003eMaker\u003c\/th\u003e\n\u003cth\u003eOEM length\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJAAKK-0006 · NJAAKK0006 · SF-NJAAKK0006-000.5M\u003c\/td\u003e\n\u003ctd\u003eAmphenol\u003c\/td\u003e\n\u003ctd\u003e0.5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJAAKK-N911\u003c\/td\u003e\n\u003ctd\u003eAmphenol\u003c\/td\u003e\n\u003ctd\u003e400 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLMTQF022-SD-R\u003c\/td\u003e\n\u003ctd\u003eLuxshare\u003c\/td\u003e\n\u003ctd\u003e400 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJAAKKR-0006\u003c\/td\u003e\n\u003ctd\u003eCompatible-market spelling\u003c\/td\u003e\n\u003ctd\u003e0.5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eCompatible suppliers commonly sell the NJAAKK-N911 number at 0.5 m, which is what this listing is. The extra 10 cm makes no difference on the desktop, and it gives you more slack between units side by side or in a rack.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eNJAAKK-N911\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM equivalent\u003c\/td\u003e\n\u003ctd\u003eAmphenol NJAAKK-0006 (0.5 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eQSFP112 on both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable rating\u003c\/td\u003e\n\u003ctd\u003e400G-rated (4 x 100G lanes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLink speed on DGX Spark \/ GB10\u003c\/td\u003e\n\u003ctd\u003eUp to 200 Gb\/s per port (NVIDIA port limit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable type\u003c\/td\u003e\n\u003ctd\u003ePassive direct-attach copper (DAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e0.5 m (50 cm \/ 1.6 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort used\u003c\/td\u003e\n\u003ctd\u003eConnectX-7 QSFP port, Ethernet mode with RoCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition \/ warranty\u003c\/td\u003e\n\u003ctd\u003eNew \/ lifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eHow Many Cables Do You Need?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eNodes\u003c\/th\u003e\n\u003cth\u003eTopology\u003c\/th\u003e\n\u003cth\u003eSwitch\u003c\/th\u003e\n\u003cth\u003eCables\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003ePoint to point\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e1 × this cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eRing (both ports per node)\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e3 × this cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eRing, custom NCCL (not NVIDIA-supported)\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e4 × this cable. In a rack, wire it folded (1→2→4→3→1) so 0.5 m reaches.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4+\u003c\/td\u003e\n\u003ctd\u003eThrough a switch\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eOne 200G DAC per node, or an \u003ca href=\"\/products\/nvidia-mellanox-compatible-mcp7h60-w002-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-2m\"\u003eMCP7H60 breakout\u003c\/a\u003e on the switch side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eA switch is the supported route at four nodes and the only route beyond. \u003ca href=\"\/blogs\/news\/can-you-build-4-node-dgx-spark-cluster-without-a-switch\"\u003eHow the four-node switchless ring works\u003c\/a\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Guides\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/nvidia-dgx-spark-stacking-cable-njaakk-n911-what-it-does-who-needs-it-and-how-it-differs-from-the-dac\"\u003eNVIDIA DGX Spark Stacking Cable NJAAKK-N911: What It Does and Who Needs It\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/njaakk-n911-vs-lmtqf022-sd-r-same-cable-different-manufacturer-what-s-the-difference\"\u003eNJAAKK-N911 vs NJAAKK-0006 vs LMTQF022-SD-R: What's the Difference?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/how-to-connect-two-nvidia-dgx-spark-systems-the-cable-you-need-and-why\"\u003eHow to Connect Two NVIDIA DGX Spark Systems\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/dgx-spark-interconnect-reference\"\u003eDGX Spark Interconnect Reference: NJAAKK-N911, NJAAKK-0006 and LMTQF022-SD-R\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility documentation:\u003c\/strong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/NJAAKK-N911_Compatibility_Report_a990a420-cf69-49bb-81dd-3b4a58b38693.pdf?v=1789753527\"\u003eNJAAKK-N911 compatibility report (PDF)\u003c\/a\u003e: DGX Spark and OEM GB10 notes, ConnectX-7 port verification, and dual-system setup steps.\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9em; color: #5b6575;\"\u003eBuilding on a budget? A 200G QSFP56 DAC such as the \u003ca href=\"\/products\/q56-200g-cu0-5-0-5-meter-1-6-ft-200g-qsfp56-passive-direct-attach-copper-dac-dgx-spark\"\u003eMCP1650-V00AE30\u003c\/a\u003e ($79) also links two Sparks, though it is not one of the parts NVIDIA names.\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":48626914525284,"sku":"NJAAKK-N911-R","price":174.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/IMG_4948.jpg?v=1785180311"},{"product_id":"qsfp-dd-400g-cu1m-cisco-compatible-400g-qsfp-dd-passive-dac-cable-1m","title":"QSFP-DD-400G-CU1M Cisco Compatible, 400G QSFP-DD Passive DAC Cable - 1m","description":"\u003cp\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e The QSFP-DD-400G-CU1M Cisco-compatible cable is a 1-meter passive 400G QSFP-DD to QSFP-DD direct-attach copper (DAC) cable for 400 Gigabit Ethernet links between switches or servers in the same rack. It is coded to work in Cisco switches that call for QSFP-DD-400G-CU1M. Resilient Tec sells it new, with a lifetime warranty and free US shipping from Knoxville, TN.\u003c\/p\u003e\n\u003ch2\u003eCisco Compatible 400G QSFP-DD Passive DAC Cable - 1 Meter\u003c\/h2\u003e\u003cp\u003eThis third-party 400G QSFP-DD Passive DAC cable is fully compatible with Cisco QSFP-DD-400G-CU1M, delivering reliable 400GbE connectivity for short-range ultra-high-speed networking applications up to 1 meter. Ideal for AI\/HPC clusters, enterprise networking, hyperscale data centers, and high-bandwidth Ethernet environments requiring ultra-low latency copper interconnect connectivity.\u003c\/p\u003e\u003cp\u003eBuilt to QSFP-DD MSA standards, it features QSFP-DD to QSFP-DD connectivity and pre-programmed EEPROM compatibility for seamless deployment with Cisco networking platforms. Backed by our \u003cstrong\u003elifetime warranty\u003c\/strong\u003e and rigorous testing—enjoy significant savings versus genuine Cisco OEM cables while maintaining reliable, high-performance connectivity.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive Cost Savings:\u003c\/strong\u003e Premium compatible 400G DAC cables at a fraction of OEM pricing—ideal for scaling AI, HPC, and enterprise networking environments affordably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Compatibility:\u003c\/strong\u003e Pre-programmed EEPROM enables seamless deployment with Cisco networking platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400G QSFP-DD Connectivity:\u003c\/strong\u003e Supports ultra-high-density 400GbE connections for next-generation switches, servers, and storage environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Latency Passive Copper Design:\u003c\/strong\u003e Passive Twinax construction minimizes latency for high-performance computing and data center applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Meter Reach:\u003c\/strong\u003e Optimized for short-range intra-rack connections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDesigned for use with Cisco networking platforms including Cisco Nexus 400G switches and other QSFP-DD compatible devices. Fully tested to ensure plug-and-play operation with no manual configuration required.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QSFP-DD-400G-CU1M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e QSFP-DD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type:\u003c\/strong\u003e Passive DAC (Direct Attach Copper)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate:\u003c\/strong\u003e 400G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 1 meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e QSFP-DD to QSFP-DD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Cisco QSFP-DD-400G-CU1M compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Lifetime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat ports does it fit?\u003c\/strong\u003e\u003cbr\u003eQSFP-DD ports running at 400G on both ends. It does not fit OSFP ports, and a QSFP28-only port cannot run it at 400G.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long can a passive 400G DAC be?\u003c\/strong\u003e\u003cbr\u003ePassive 400G copper is made for very short runs of a few meters at most. For longer links use 400G optics, such as SR8 over multimode fiber or DR4 over single-mode fiber.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need power or configuration?\u003c\/strong\u003e\u003cbr\u003eNo. It is passive copper with no optics; the port reads its coding and brings the link up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible cable or genuine Cisco: what is the difference?\u003c\/strong\u003e\u003cbr\u003eThis is a new third-party cable programmed (coded) to be recognized by Cisco equipment that calls for this part number, at a fraction of the Cisco-branded price. Choose the genuine Cisco part only if your support contract or internal policy requires Cisco-branded parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat warranty and shipping come with it?\u003c\/strong\u003e\u003cbr\u003eResilient Tec's lifetime warranty. US standard shipping is free with no minimum, and orders typically arrive in 3 to 5 days.\u003c\/p\u003e\n\u003ch3\u003eYou Might Also Need\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/products\/qdd-400g-sr8-s-cisco-compatible-400gbase-sr8-qsfp-dd-pam4-transceiver-100m\"\u003eQDD-400G-SR8-S Cisco Compatible, 400G QSFP-DD SR8 Transceiver\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/products\/qdd-400g-dr4-s-cisco-compatible-400gbase-dr4-qsfp-dd-pam4-transceiver-500m\"\u003eQDD-400G-DR4-S Cisco Compatible, 400G QSFP-DD DR4 Transceiver\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/collections\/dac-cables\"\u003eAll DAC cables\u003c\/a\u003e\u003c\/p\u003e\n","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":48628307427428,"sku":"QSFP-DD-400G-CU1M","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/qsfp-dd-400g-cu1m-cisco-compatible-400g-qsfp-dd-passive-dac-cable-1m_1.jpg?v=1793145903"},{"product_id":"cab-qd-qd-400g-1m-arista-compatible-400g-qsfp-dd-passive-dac-cable-1m","title":"CAB-QD-QD-400G-1M Arista Compatible, 400G QSFP-DD Passive DAC Cable - 1m","description":"\u003cp\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e The CAB-QD-QD-400G-1M Arista-compatible cable is a 1-meter passive 400G QSFP-DD to QSFP-DD direct-attach copper (DAC) cable (400GBASE-CR8) for switch-to-switch links in the same rack. It is coded to work in Arista switches that call for CAB-QD-QD-400G-1M. Resilient Tec sells it new, with a lifetime warranty and free US shipping from Knoxville, TN.\u003c\/p\u003e\n\u003ch2\u003eArista Compatible 400G QSFP-DD Passive DAC Cable - 1 Meter\u003c\/h2\u003e\n\u003cp\u003eThis third-party 400G QSFP-DD Passive DAC cable is fully compatible with Arista CAB-QD-QD-400G-1M, delivering reliable 400GbE connectivity for short-range ultra-high-speed networking applications up to 1 meter. Ideal for AI\/HPC clusters, enterprise networking, hyperscale data centers, and high-bandwidth Ethernet environments requiring ultra-low latency copper interconnect connectivity.\u003c\/p\u003e\n\u003cp\u003eBuilt to QSFP-DD MSA standards, it features QSFP-DD to QSFP-DD connectivity and pre-programmed EEPROM compatibility for seamless deployment with Arista networking platforms. Backed by our lifetime warranty and rigorous testing—enjoy significant savings versus genuine Arista OEM cables while maintaining reliable, high-performance connectivity.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive Cost Savings:\u003c\/strong\u003e Premium compatible DAC cables at a fraction of OEM pricing—ideal for scaling enterprise and AI networking environments affordably.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Compatibility:\u003c\/strong\u003e Pre-programmed EEPROM enables seamless deployment with Arista networking platforms requiring Arista P\/N CAB-QD-QD-400G-1M.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable 400GbE Connectivity:\u003c\/strong\u003e Supports stable ultra-high-speed 400GbE networking for switches, servers, and storage environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Latency Passive Copper Design:\u003c\/strong\u003e Passive 30AWG Twinax construction minimizes latency and power consumption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized for Data Centers:\u003c\/strong\u003e Ideal for spine-leaf architectures, AI fabrics, and high-throughput Ethernet deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Short-Range Connectivity:\u003c\/strong\u003e Supports stable 400GbE transmission up to 1 meter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced EMI Design:\u003c\/strong\u003e Designed to minimize electromagnetic interference in dense networking environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate:\u003c\/strong\u003e 400GbE\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type:\u003c\/strong\u003e Passive DAC (Direct Attach Copper) Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e QSFP-DD to QSFP-DD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 1 Meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire AWG:\u003c\/strong\u003e 30AWG Twinax\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 3.3V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e QSFP-DD MSA compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 400GbE compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eProgrammed for compatibility with Arista networking platforms requiring Arista P\/N CAB-QD-QD-400G-1M, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eArista 7800 Series switches\u003c\/li\u003e\n\u003cli\u003eEnterprise Ethernet networks\u003c\/li\u003e\n\u003cli\u003eAI and HPC cluster environments\u003c\/li\u003e\n\u003cli\u003eSpine-leaf switching deployments\u003c\/li\u003e\n\u003cli\u003eHyperscale and cloud data center environments\u003c\/li\u003e\n\u003cli\u003eMSA-compliant networking platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRequires compatible QSFP-DD ports on connected devices.\u003c\/p\u003e\n\u003cp\u003eNeed different cable lengths, compatible DAC\/AOC options, or bulk quotes? \u003cstrong\u003eContact us\u003c\/strong\u003e—we specialize in high-performance networking solutions for AI, HPC, and data center environments.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo both ends need QSFP-DD ports?\u003c\/strong\u003e\u003cbr\u003eYes. This cable has a QSFP-DD connector on each end, so both switches need 400G QSFP-DD ports. It will not fit OSFP ports.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDAC or 400G optics: which should I use?\u003c\/strong\u003e\u003cbr\u003eFor runs of a meter or two inside a rack, the passive DAC is far cheaper and draws almost no power. For longer runs use 400G optics with fiber.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible cable or genuine Arista: what is the difference?\u003c\/strong\u003e\u003cbr\u003eThis is a new third-party cable programmed (coded) to be recognized by Arista equipment that calls for this part number, at a fraction of the Arista-branded price. Choose the genuine Arista part only if your support contract or internal policy requires Arista-branded parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat warranty and shipping come with it?\u003c\/strong\u003e\u003cbr\u003eResilient Tec's lifetime warranty. US standard shipping is free with no minimum, and orders typically arrive in 3 to 5 days.\u003c\/p\u003e\n\u003ch3\u003eYou Might Also Need\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/products\/cab-q-q-100g-1m-arista-compatible-100g-qsfp28-passive-dac-cable-1m\"\u003eCAB-Q-Q-100G-1M Arista Compatible, 100G QSFP28 Passive DAC Cable\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/products\/qsfp-200g-sr4-arista-compatible-200g-qsfp56-sr4-transceiver-100m\"\u003eQSFP-200G-SR4 Arista Compatible, 200G QSFP56 SR4 Transceiver\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"\/collections\/dac-cables\"\u003eAll DAC cables\u003c\/a\u003e\u003c\/p\u003e\n","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":48630224224356,"sku":"CAB-QD-QD-400G-1M","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/MCP1660-W001E30.png?v=1780438141"},{"product_id":"lmtqf022-sd-r-400g-qsfp112-passive-dac-stacking-cable-0-5m-nvidia-dgx-spark-validated-equivalent","title":"LMTQF022-SD-R Equivalent QSFP112 400G-Rated Passive DAC, 0.5m – Stacking Cable for NVIDIA DGX Spark, ASUS GX10, Dell GB10, HP ZGX Nano, Lenovo PGX","description":"\u003cp\u003e\u003cstrong\u003eShopping for the Luxshare LMTQF022-SD-R? This is the equivalent cable we stock.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e$174\u003c\/strong\u003e. New, with a lifetime warranty\u003c\/li\u003e\n\u003cli\u003eFree U.S. shipping; ships same day on orders before 5 PM ET from Knoxville, Tennessee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e31-day returns, return shipping on us\u003c\/strong\u003e (\u003ca href=\"\/policies\/refund-policy\"\u003edetails\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValidated on ConnectX-7\u003c\/strong\u003e in DGX Spark (\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/LMTQF022-SD-R_Compatibility_Report.pdf?v=1789753527\"\u003ecompatibility report\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eFits NVIDIA DGX Spark, ASUS Ascent GX10, Dell Pro Max GB10 and HP ZGX Nano AI Station\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"border-left: 3px solid #b8791a; background: #f7f8fa; padding: 14px 18px; margin: 14px 0;\"\u003e\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eWhat you are buying, stated plainly.\u003c\/strong\u003e We ship a compatible QSFP112 passive DAC, part number LMTQF022-SD-R, 0.5 m (50 cm), supplied by Resilient Tec. It is \u003cem\u003enot\u003c\/em\u003e a genuine Luxshare LMTQF022-SD-R. It is the same specification — QSFP112 passive copper, 400G-rated, both ends — and it does the same job on a DGX Spark.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eThis is the same cable sold on our \u003ca href=\"\/products\/njaakk-n911-400g-qsfp112-passive-dac-stacking-cable-0-5m-nvidia-dgx-spark\"\u003eNJAAKK-N911 listing\u003c\/a\u003e. Two listings, one product — you only need one cable to link two units.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e→ \u003cstrong\u003e\u003ca href=\"\/pages\/dgx-spark-gb10-guide\"\u003eDGX Spark \u0026amp; GB10 Clustering Guide\u003c\/a\u003e\u003c\/strong\u003e: which cable to buy at two, three and four or more nodes, approved part numbers, and real-world throughput.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e LMTQF022-SD-R (Resilient Tec compatible build)\u003cbr\u003e\u003cstrong\u003eCross-references:\u003c\/strong\u003e Luxshare LMTQF022-SD-R · Amphenol NJAAKK-N911 \/ NJAAKK-0006\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e QSFP112 Passive Direct Attach Copper (DAC) cable, 400G-rated, 0.5 m (1.6 ft)\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy the Part Numbers Differ — and Why It Does Not Matter Here\u003c\/h2\u003e\n\u003cp\u003eNVIDIA's DGX Spark documentation names approved cables from two manufacturers, across two lengths. They are one specification, not several different products:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eWhat it is\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLMTQF022-SD-R\u003c\/td\u003e\n\u003ctd\u003e400 mm (1.3 ft)\u003c\/td\u003e\n\u003ctd\u003eLuxshare\u003c\/td\u003e\n\u003ctd\u003eNVIDIA-listed approved cable — what you searched for, 30AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJAAKK-N911\u003c\/td\u003e\n\u003ctd\u003e400 mm (1.3 ft)\u003c\/td\u003e\n\u003ctd\u003eAmphenol\u003c\/td\u003e\n\u003ctd\u003eNVIDIA-listed approved cable — Amphenol's short version, 32AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJAAKK-0006 · NJAAKK0006 · SF-NJAAKK0006-000.5M\u003c\/td\u003e\n\u003ctd\u003e0.5 m (1.6 ft)\u003c\/td\u003e\n\u003ctd\u003eAmphenol\u003c\/td\u003e\n\u003ctd\u003eNVIDIA-listed approved cable — the 0.5 m version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJAAKKR-0006\u003c\/td\u003e\n\u003ctd\u003e0.5 m (1.6 ft)\u003c\/td\u003e\n\u003ctd\u003ecompatible market\u003c\/td\u003e\n\u003ctd\u003eA compatible-market spelling of the 0.5 m part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eA compatible QSFP112 passive DAC from a reputable source meets the same electrical specification and works normally in DGX Spark and GB10 systems — but it is not the OEM part, and we would rather say so on the page than have you find out when it arrives.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eLMTQF022-SD-R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied by\u003c\/td\u003e\n\u003ctd\u003eResilient Tec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCross-references\u003c\/td\u003e\n\u003ctd\u003eLuxshare LMTQF022-SD-R · Amphenol NJAAKK-N911 \/ NJAAKK-0006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eQSFP112\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Rating\u003c\/td\u003e\n\u003ctd\u003e400G-rated (4 x 100G lanes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLink speed on DGX Spark \/ GB10 systems\u003c\/td\u003e\n\u003ctd\u003eUp to 200 Gb\/s per port (port-capped by NVIDIA spec)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003ePassive Direct Attach Copper (DAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e0.5 m (50 cm \/ 1.6 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eQSFP112 on both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Used\u003c\/td\u003e\n\u003ctd\u003eConnectX-7 QSFP port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNVIDIA approval status\u003c\/td\u003e\n\u003ctd\u003eCompatible equivalent to the NVIDIA-listed approved cables (Luxshare LMTQF022-SD-R, Amphenol NJAAKK-N911 \/ NJAAKK-0006)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eHow It Is Used\u003c\/h2\u003e\n\u003cp\u003eOn the NVIDIA DGX Spark — and on the OEM GB10 systems built on the same reference platform (HP ZGX Nano AI Station, Dell Pro Max with GB10, ASUS Ascent GX10) — you plug this cable into the system's \u003cstrong\u003eConnectX-7 QSFP ports\u003c\/strong\u003e to link units directly, with no switch required. Per NVIDIA's DGX Spark documentation, each of these QSFP ports operates at \u003cstrong\u003eup to 200 Gb\/s\u003c\/strong\u003e, so the link runs at 200 Gb\/s even though the cable itself is QSFP112 \/ 400G-rated. There is no separate \"dedicated stacking port\" — the ConnectX-7 QSFP ports are used both for connecting units together and for standard Ethernet \/ RoCE networking.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eHow Many Cables Do You Need?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eNodes\u003c\/th\u003e\n\u003cth\u003eTopology\u003c\/th\u003e\n\u003cth\u003eSwitch\u003c\/th\u003e\n\u003cth\u003eCables\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003ePoint to point\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e1 × this cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eRing (both ports per node)\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e3 × this cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eRing, custom NCCL — not NVIDIA-supported\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e4 × this cable. In a rack, wire it folded (1→2→4→3→1) so no cable spans more than two units and 0.5 m reaches.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4+\u003c\/td\u003e\n\u003ctd\u003eThrough a 400G switch\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eOne \u003ca href=\"\/products\/200g-qsfp56-passive-dac-2m-reach-mellanox-nvidia-compatible-download-comprehensive-compatibility-matrix\"\u003e200G QSFP56 DAC\u003c\/a\u003e per node, or an \u003ca href=\"\/products\/nvidia-mellanox-compatible-mcp7h60-w002-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-2m\"\u003eMCP7H60 breakout\u003c\/a\u003e on the switch side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to four units connect without a switch.\u003c\/strong\u003e Two Sparks take one cable. Three take three cables in a ring, using both QSFP ports on every unit — the configuration NVIDIA documents. Four can also run switchless as a ring of four cables using a custom NCCL build; owners are running it today, but it is outside NVIDIA support and cannot grow past four. A switch is the supported route at four nodes and the only route beyond. \u003ca href=\"\/blogs\/news\/can-you-build-4-node-dgx-spark-cluster-without-a-switch\"\u003eHow the four-node switchless ring works\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnects units directly — no switch, transceivers, or adapters required\u003c\/li\u003e\n\u003cli\u003e0.5 m is ideal for two compact desktop units placed side by side\u003c\/li\u003e\n\u003cli\u003eWorks across the GB10 ecosystem (NVIDIA DGX Spark, HP ZGX Nano AI Station, Dell Pro Max with GB10, ASUS Ascent GX10), which share the same ConnectX-7 networking\u003c\/li\u003e\n\u003cli\u003eThe ConnectX-7 QSFP ports operate in Ethernet mode (with RoCE), not InfiniBand\u003c\/li\u003e\n\u003cli\u003ePassive copper — no transceivers, no power draw, no firmware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Guides\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/njaakk-n911-vs-lmtqf022-sd-r-same-cable-different-manufacturer-what-s-the-difference\"\u003eNJAAKK-N911 vs NJAAKK-0006 vs LMTQF022-SD-R: What's the Difference?\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/nvidia-dgx-spark-stacking-cable-njaakk-n911-what-it-does-who-needs-it-and-how-it-differs-from-the-dac\"\u003eNVIDIA DGX Spark Stacking Cable: What It Does and How It Compares to the DAC\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/how-to-connect-two-nvidia-dgx-spark-systems-the-cable-you-need-and-why\"\u003eHow to Connect Two NVIDIA DGX Spark Systems: The Cable You Need and Why\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/can-you-build-4-node-dgx-spark-cluster-without-a-switch\"\u003eCan You Build a 4-Node DGX Spark Cluster Without a Switch? The Ring That Works and the Breakout Trick That Doesn't\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/dgx-spark-interconnect-reference\"\u003eDGX Spark Interconnect Reference: NJAAKK-N911, NJAAKK-0006 and LMTQF022-SD-R\u003c\/a\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eCOMPATIBILITY DOCUMENTATION\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDownload compatibility report: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/LMTQF022-SD-R_Compatibility_Report.pdf?v=1789753527\"\u003eLMTQF022-SD-R_Compatibility_Report\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eGuide includes: compatibility notes for NVIDIA DGX Spark and OEM GB10 platforms, ConnectX-7 200GbE port verification, dual-system interconnect setup instructions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":48640278888548,"sku":"LMTQF022-SD-R","price":174.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/IMG_5216.jpg?v=1791483111"},{"product_id":"mcp4y10-n001-800g-twin-port-osfp-passive-dac-cable-1m-finned-top-quantum-2","title":"MCP4Y10-N001 Compatible 800G Twin-Port OSFP Passive DAC Cable, 1m, Finned Top – Quantum-2 Switch-to-Switch","description":"\u003cp\u003e\u003cstrong\u003eTwin-port 800G OSFP passive DAC for NVIDIA Quantum-2 switch-to-switch links. Finned top on both ends.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart number:\u003c\/strong\u003e MCP4Y10-N001 (NVIDIA \/ Mellanox LinkX compatible)\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e 800Gb\/s twin-port OSFP to twin-port OSFP passive direct attach copper cable, 2×400G NDR InfiniBand, 1 m (3.3 ft), 30AWG\u003c\/p\u003e\n\u003cp\u003eThe MCP4Y10-N001 links two NVIDIA Quantum-2 switch ports at 800Gb\/s. Each OSFP end carries two independent 400G NDR links (8 × 100G-PAM4 lanes), so one cable joins two switch cages and carries two 400G ports' worth of traffic. Both ends have the \u003cstrong\u003efinned-top\u003c\/strong\u003e heat sink that air-cooled Quantum-2 and Spectrum-4 switch cages require.\u003c\/p\u003e\n\u003ch2\u003eWhere It Fits, and Where It Does Not\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYes:\u003c\/strong\u003e Quantum-2 QM9700 \/ QM9790 InfiniBand switch to switch (leaf to spine, inter-switch links) inside a rack or to the next rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYes:\u003c\/strong\u003e Spectrum-4 800GbE switch to switch, where the twin-port OSFP cages are finned-top as well.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo:\u003c\/strong\u003e DGX H100 \/ DGX H200 or ConnectX-7 adapters. Those cages are flat-top and their ports are 400G, so a finned-top twin-port cable will not seat. To reach servers from the switch, use the \u003ca href=\"\/products\/nvidia-mellanox-mcp7y00-n002-compatible-800gb-s-osfp-to-2x400gb-s-osfp-passive-breakout-dac-cable-2m\"\u003eMCP7Y00-N002 800G → 2× 400G breakout DAC\u003c\/a\u003e, or flat-top optics such as the \u003ca href=\"\/products\/mma4z00-ns400-compatible-400g-osfp-sr4-flat-top-rhs-transceiver-connectx-7\"\u003eMMA4Z00-NS400\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eMCP4Y10-N001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectors\u003c\/td\u003e\n\u003ctd\u003eTwin-port OSFP, both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData rate\u003c\/td\u003e\n\u003ctd\u003e800Gb\/s (2 × 400G NDR InfiniBand or 800GbE), 8 × 100G-PAM4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop style\u003c\/td\u003e\n\u003ctd\u003eFinned top, both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable type\u003c\/td\u003e\n\u003ctd\u003ePassive direct attach copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire gauge\u003c\/td\u003e\n\u003ctd\u003e30AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e1 m (3.3 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHosts\u003c\/td\u003e\n\u003ctd\u003eNVIDIA Quantum-2 QM9700 \/ QM9790, Spectrum-4 twin-port OSFP switches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime, backed by Resilient Tec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNeed 2 m instead? See the \u003ca href=\"\/products\/mcp4y10-n002-800g-twin-port-osfp-passive-dac-cable-2m-finned-top-quantum-2\"\u003eMCP4Y10-N002\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eBeyond 2 m, use a finned-top \u003ca href=\"\/products\/mma4z00-ns-compatible-800g-osfp-sr8-finned-top-ihs-transceiver-quantum-2\"\u003eMMA4Z00-NS\u003c\/a\u003e at each switch with MPO-12\/APC OM4 trunks.\u003c\/li\u003e\n\u003cli\u003ePassive copper draws almost no power and adds the least latency of any switch-to-switch option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Guides\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/nvidia-hopper-h100-h200-interconnect-matrix\"\u003eH100 \/ H200 interconnect matrix\u003c\/a\u003e: every link in a Hopper cluster, with the right cable for each.\u003cbr\u003e\u003ca href=\"\/blogs\/news\/osfp-flat-top-vs-finned-top-which-module\"\u003eOSFP flat-top vs finned-top: which do you need?\u003c\/a\u003e\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":48896023232612,"sku":"MCP4Y10-N001","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/01_main_v2.jpg?v=1794246234"},{"product_id":"mcp4y10-n002-800g-twin-port-osfp-passive-dac-cable-2m-finned-top-quantum-2","title":"MCP4Y10-N002 Compatible 800G Twin-Port OSFP Passive DAC Cable, 2m, Finned Top – Quantum-2 Switch-to-Switch","description":"\u003cp\u003e\u003cstrong\u003eTwin-port 800G OSFP passive DAC for NVIDIA Quantum-2 switch-to-switch links. Finned top on both ends.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart number:\u003c\/strong\u003e MCP4Y10-N002 (NVIDIA \/ Mellanox LinkX compatible)\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e 800Gb\/s twin-port OSFP to twin-port OSFP passive direct attach copper cable, 2×400G NDR InfiniBand, 2 m (6.6 ft), 28AWG\u003c\/p\u003e\n\u003cp\u003eThe MCP4Y10-N002 links two NVIDIA Quantum-2 switch ports at 800Gb\/s. Each OSFP end carries two independent 400G NDR links (8 × 100G-PAM4 lanes), so one cable joins two switch cages and carries two 400G ports' worth of traffic. Both ends have the \u003cstrong\u003efinned-top\u003c\/strong\u003e heat sink that air-cooled Quantum-2 and Spectrum-4 switch cages require.\u003c\/p\u003e\n\u003ch2\u003eWhere It Fits, and Where It Does Not\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYes:\u003c\/strong\u003e Quantum-2 QM9700 \/ QM9790 InfiniBand switch to switch (leaf to spine, inter-switch links) inside a rack or to the next rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYes:\u003c\/strong\u003e Spectrum-4 800GbE switch to switch, where the twin-port OSFP cages are finned-top as well.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo:\u003c\/strong\u003e DGX H100 \/ DGX H200 or ConnectX-7 adapters. Those cages are flat-top and their ports are 400G, so a finned-top twin-port cable will not seat. To reach servers from the switch, use the \u003ca href=\"\/products\/nvidia-mellanox-mcp7y00-n002-compatible-800gb-s-osfp-to-2x400gb-s-osfp-passive-breakout-dac-cable-2m\"\u003eMCP7Y00-N002 800G → 2× 400G breakout DAC\u003c\/a\u003e, or flat-top optics such as the \u003ca href=\"\/products\/mma4z00-ns400-compatible-400g-osfp-sr4-flat-top-rhs-transceiver-connectx-7\"\u003eMMA4Z00-NS400\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eMCP4Y10-N002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectors\u003c\/td\u003e\n\u003ctd\u003eTwin-port OSFP, both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData rate\u003c\/td\u003e\n\u003ctd\u003e800Gb\/s (2 × 400G NDR InfiniBand or 800GbE), 8 × 100G-PAM4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop style\u003c\/td\u003e\n\u003ctd\u003eFinned top, both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable type\u003c\/td\u003e\n\u003ctd\u003ePassive direct attach copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire gauge\u003c\/td\u003e\n\u003ctd\u003e28AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e2 m (6.6 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHosts\u003c\/td\u003e\n\u003ctd\u003eNVIDIA Quantum-2 QM9700 \/ QM9790, Spectrum-4 twin-port OSFP switches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime, backed by Resilient Tec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNeed 1 m instead? See the \u003ca href=\"\/products\/mcp4y10-n001-800g-twin-port-osfp-passive-dac-cable-1m-finned-top-quantum-2\"\u003eMCP4Y10-N001\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eBeyond 2 m, use a finned-top \u003ca href=\"\/products\/mma4z00-ns-compatible-800g-osfp-sr8-finned-top-ihs-transceiver-quantum-2\"\u003eMMA4Z00-NS\u003c\/a\u003e at each switch with MPO-12\/APC OM4 trunks.\u003c\/li\u003e\n\u003cli\u003ePassive copper draws almost no power and adds the least latency of any switch-to-switch option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Guides\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/nvidia-hopper-h100-h200-interconnect-matrix\"\u003eH100 \/ H200 interconnect matrix\u003c\/a\u003e: every link in a Hopper cluster, with the right cable for each.\u003cbr\u003e\u003ca href=\"\/blogs\/news\/osfp-flat-top-vs-finned-top-which-module\"\u003eOSFP flat-top vs finned-top: which do you need?\u003c\/a\u003e\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":48916337655908,"sku":"MCP4Y10-N002","price":243.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/01_main_v2_b10347f6-1af8-45ca-9079-7351844a66a6.jpg?v=1794246246"},{"product_id":"mcp1660-w01ae30-mellanox-compatible-400g-qsfp-dd-1-5m","title":"MCP1660-W01AE30 NVIDIA\/Mellanox Compatible 400G QSFP-DD Passive DAC Cable — 1.5m","description":"\u003cp\u003e\u003cstrong\u003eQSFP-DD — not OSFP. Passive copper twinax, not optics.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNVIDIA \/ Mellanox MCP1660-W01AE30 compatible — 400G QSFP-DD passive DAC, 1.5m, 30AWG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e→ \u003cstrong\u003e\u003ca href=\"\/blogs\/news\/osfp-vs-qsfp-dd-gpu-clusters\"\u003eOSFP vs QSFP-DD for GPU clusters\u003c\/a\u003e\u003c\/strong\u003e — form-factor fork that decides whether this cable fits your cage at all.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMellanox \/ NVIDIA Part Number:\u003c\/strong\u003e MCP1660-W01AE30\u003cbr\u003e\u003cstrong\u003eNVIDIA 980- Part Number:\u003c\/strong\u003e 980-9I35S-00W01A\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e 400GbE \/ 400Gb\/s passive Direct Attach Copper (DAC) cable, QSFP-DD to QSFP-DD, 1.5 meters, 30AWG twinax\u003c\/p\u003e\n\u003cp\u003eThis is a \u003cstrong\u003eQSFP-DD\u003c\/strong\u003e passive DAC — the short-reach copper interconnect for QSFP-DD 400G ports. It is \u003cstrong\u003enot\u003c\/strong\u003e an OSFP cable, and it is not a flat-top \/ RHS optical module. If your switch, NIC, or GPU node has an \u003cstrong\u003eOSFP\u003c\/strong\u003e cage, this part will not seat. Use the OSFP DAC family (for example MCP4Y10) instead.\u003c\/p\u003e\n\u003cp\u003eProgrammed for NVIDIA \/ Mellanox ecosystems and built to the QSFP-DD MSA. Hot-pluggable, near-zero power draw (passive), lifetime warranty from Resilient Tec.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhich One Do I Need?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eGoing into\u003c\/th\u003e\n\u003cth\u003eYou need\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eQSFP-DD 400G ports, ~1.5m intra-rack run, copper is fine\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eMCP1660-W01AE30\u003c\/strong\u003e — this product (1.5m, 30AWG, passive DAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSame QSFP-DD cages, 1m run\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/400g-qsfp-dd-breakout-dac-with-mellanox-nvidia-compatibility-download-compatibility-report-with-eeprom-data-msa-specs-and-implementation-guides\"\u003eMCP1660-W001E30 — 1m QSFP-DD passive DAC\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSame QSFP-DD cages, 2m run\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/400g-qsfp-dd-dac-2m-extended-reach-nvidia-mellanox-compatible-download-comprehensive-compatibility-report\"\u003eMCP1660-W002E30 — 2m QSFP-DD passive DAC\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOSFP cages (Quantum-2 twin-port, DGX H100\/H200 OSFP, ConnectX-7 OSFP)\u003c\/td\u003e\n\u003ctd\u003eOSFP DAC family (e.g. MCP4Y10) — \u003cstrong\u003enot this cable\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRuns longer than ~3m, or you need optical isolation \/ thinner cable plant\u003c\/td\u003e\n\u003ctd\u003e400G AOC or SR4\/DR4 optics — \u003cstrong\u003enot a passive DAC\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eForm factor is the first fork.\u003c\/strong\u003e QSFP-DD and OSFP do not mate. Ordering an OSFP-labeled 400G DAC for a QSFP-DD port — or the reverse — is the most common wrong order on this part family.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLength is the second fork.\u003c\/strong\u003e Passive 400G DAC is a short-reach tool. 1.5m (this PID) is the mid length in the MCP1660-W0xxEyy series (0.5 \/ 1 \/ 1.5 \/ 2 \/ 2.5 \/ 3m). Past that, move to AOC or optics.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMellanox \/ NVIDIA Part Number\u003c\/td\u003e\n\u003ctd\u003eMCP1660-W01AE30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNVIDIA 980- Part Number\u003c\/td\u003e\n\u003ctd\u003e980-9I35S-00W01A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eQSFP-DD to QSFP-DD (not OSFP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003ePassive Direct Attach Copper (DAC) \/ twinax\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003e400Gb\/s — 400GbE (400G-CR8 PAM4 class)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e1.5 m (≈ 4.9 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Gauge\u003c\/td\u003e\n\u003ctd\u003e30 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive — typically \u0026lt; 0.1W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol\u003c\/td\u003e\n\u003ctd\u003e400GbE Ethernet; InfiniBand NDR where the host QSFP-DD port supports it\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHost Platforms\u003c\/td\u003e\n\u003ctd\u003eNVIDIA \/ Mellanox and MSA-compliant QSFP-DD 400G ports (switches, NICs, GPU nodes) — verify your exact platform matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eQSFP-DD MSA, IEEE 802.3ck \/ 400GBASE-CR8 class, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to 70°C (commercial)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoding\u003c\/td\u003e\n\u003ctd\u003eCoded specifically for NVIDIA \/ Mellanox compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime, backed by Resilient Tec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eNote on Reach: Why Passive DAC Stops Around 3m\u003c\/h2\u003e\n\u003cp\u003eNVIDIA’s MCP1660-W0xxEyy series tops out at \u003cstrong\u003e3 meters\u003c\/strong\u003e for passive 400G QSFP-DD copper. That is not a marketing preference — it is the practical limit of passive twinax at 400G before insertion loss and crosstalk eat the link. \u003cstrong\u003e1.5m\u003c\/strong\u003e (this part) sits in the middle of the family and is the usual choice for adjacent-rack or deep-rack QSFP-DD jumpers when 1m is short and 2m is longer than you need.\u003c\/p\u003e\n\u003cp\u003eIf your run is past ~3m, or you need a thinner cable for dense cable management, move to a 400G AOC or to SR4\/DR4 optics with the correct fiber. Do not stretch a passive DAC past its rated length and hope — the link will either refuse to train or fail intermittently under load.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis is QSFP-DD, not OSFP.\u003c\/strong\u003e Older listing copy on this SKU incorrectly said OSFP \/ RHS \/ flat-top. Those terms describe OSFP optical modules and OSFP DACs — a different cage. This cable only fits QSFP-DD ports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive means no retimers in the cable.\u003c\/strong\u003e Power and heat stay on the host. That is why DAC wins for short intra-rack links, and why it loses past a few meters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSibling lengths we stock:\u003c\/strong\u003e \u003ca href=\"\/products\/400g-qsfp-dd-breakout-dac-with-mellanox-nvidia-compatibility-download-compatibility-report-with-eeprom-data-msa-specs-and-implementation-guides\"\u003eMCP1660-W001E30 (1m)\u003c\/a\u003e and \u003ca href=\"\/products\/400g-qsfp-dd-dac-2m-extended-reach-nvidia-mellanox-compatible-download-comprehensive-compatibility-report\"\u003eMCP1660-W002E30 (2m)\u003c\/a\u003e. Same family, same form factor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOSFP DAC is a different family\u003c\/strong\u003e (MCP4Y10 and related). If your BOM says OSFP, stop — this PID will not work.\u003c\/li\u003e\n\u003cli\u003eEEPROM is programmed for NVIDIA \/ Mellanox recognition. MSA-compliant third-party QSFP-DD hosts often work; always confirm against your platform’s supported transceiver \/ cable list for production fabrics.\u003c\/li\u003e\n\u003cli\u003eBend radius matters near the connector — treat the boot as a fixed radius zone, not a place to cinch zip-ties.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eQuick Checklist — Is This the Right Cable?\u003c\/h2\u003e\n\u003cp\u003eYou have two \u003cstrong\u003eQSFP-DD\u003c\/strong\u003e 400G ports. The run is about \u003cstrong\u003e1.5 meters\u003c\/strong\u003e. You want \u003cstrong\u003epassive copper\u003c\/strong\u003e (not AOC, not SR4\/DR4 optics). Your BOM or platform list accepts \u003cstrong\u003eMCP1660-W01AE30\u003c\/strong\u003e \/ \u003cstrong\u003e980-9I35S-00W01A\u003c\/strong\u003e. You are \u003cstrong\u003enot\u003c\/strong\u003e filling an OSFP cage.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailability\u003c\/h2\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e\u003cstrong\u003eCurrently out of stock · Additional units typically available on short lead time.\u003c\/strong\u003e\u003cbr\u003eBuilding a rack or filling a spare kit? Tell us how many QSFP-DD 400G jumpers you need (1m \/ 1.5m \/ 2m) and we will quote the set. \u003ca href=\"\/pages\/request-a-quote\"\u003e\u003cstrong\u003eRequest a quote →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e lifetime, \u003ca href=\"\/pages\/lifetime-warranty\"\u003ebacked by Resilient Tec\u003c\/a\u003e — not a manufacturer term. When a cable fails you reach a named seller in the US, not a ticket queue.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eYou Might Also Need\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/400g-qsfp-dd-breakout-dac-with-mellanox-nvidia-compatibility-download-compatibility-report-with-eeprom-data-msa-specs-and-implementation-guides\"\u003eMCP1660-W001E30 — 400G QSFP-DD Passive DAC, 1m\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/400g-qsfp-dd-dac-2m-extended-reach-nvidia-mellanox-compatible-download-comprehensive-compatibility-report\"\u003eMCP1660-W002E30 — 400G QSFP-DD Passive DAC, 2m\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/mcp4y10-n001-osfp-400g-ndr-infiniband-passive-dac-cable-1m-nvidia-dgx-h100-h200-1\"\u003eMCP4Y10-N001 — OSFP 400G NDR Passive DAC, 1m\u003c\/a\u003e — when the cage is OSFP, not QSFP-DD\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mcp4y10-n002-osfp-400g-ndr-infiniband-passive-dac-cable-2m-nvidia-dgx-h100-h200\"\u003eMCP4Y10-N002 — OSFP 400G NDR Passive DAC, 2m\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/product-guides\"\u003eProduct guides\u003c\/a\u003e · \u003ca href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Guides\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/osfp-vs-qsfp-dd-gpu-clusters\"\u003eOSFP vs. QSFP-DD: A Practical Breakdown for GPU Clusters\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/osfp-dac-cables-what-they-are-when-to-use-one\"\u003eOSFP DAC Cables — What They Are and When to Use One\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/nvidia-mellanox-interconnect-compatibility-guide\"\u003eNVIDIA \u0026amp; Mellanox Interconnect Compatibility Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/lifetime-warranty\"\u003eLifetime warranty — how Resilient Tec backs what we sell\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/request-a-quote\"\u003eRequest a quote for 400G QSFP-DD DAC fills and spare kits\u003c\/a\u003e\u003c\/p\u003e\n","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":49190524977252,"sku":"MCP1660-W01AE30","price":139.0,"currency_code":"USD","in_stock":true}]},{"product_id":"mcp7h60-w001-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1m","title":"MCP7H60-W001 NVIDIA\/Mellanox Compatible, 400G QSFP-DD to 2x200G QSFP56 Passive Breakout DAC Cable - 1m","description":"\u003ch2\u003eNVIDIA\/Mellanox Compatible 400G QSFP-DD to 2x200G QSFP56 Passive Breakout Direct Attach Copper (DAC) Cable - 1 Meter\u003c\/h2\u003e\n\u003cp\u003eThis third-party passive breakout DAC cable is compatible with NVIDIA\/Mellanox MCP7H60-W001R30: one 400G QSFP-DD switch port fans out to two 200G QSFP56 ports. The 1 m length uses thinner 30 AWG wire, so it routes easily when the switch sits on the same shelf as the nodes.\u003c\/p\u003e\n\u003cp\u003eSupports full 400Gbps (split to 2x200Gbps, 8x50G PAM4 lanes) with ultra-low latency and power. Backed by our \u003cstrong\u003elifetime warranty\u003c\/strong\u003e. New, with free standard shipping on all US orders.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort, flexible run\u003c\/strong\u003e: 1 m, 30 AWG — the easiest length to dress in a tight desk or half-rack build.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play\u003c\/strong\u003e: Hot-pluggable connectors with pre-programmed EEPROM for NVIDIA\/Mellanox compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive and cool\u003c\/strong\u003e: No optics to power, cool or fail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e backed by Resilient Tec.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate\u003c\/strong\u003e: 400Gbps (400GbE, split to 2x200Gbps, 8x50Gbps PAM4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors\u003c\/strong\u003e: 1x QSFP-DD to 2x QSFP56\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLane Mapping\u003c\/strong\u003e: TX1-4 \/ RX1-4 to leg 1, TX5-8 \/ RX5-8 to leg 2 — each leg runs 200G CR4 (4 lanes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1 meter (3.3 ft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type\u003c\/strong\u003e: Passive Twinax Copper, 30 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e: IEEE 802.3cd, SFF-8665, QSFP-DD\/QSFP56 MSA, CMIS compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference\u003c\/strong\u003e: NVIDIA MCP7H60-W001R30 (30 AWG, 1 m); family documented as MCP7H60-W0xxRyy. Also sold as the 1.5 m \u003ca href=\"\/products\/mcp7h60-w01ar30-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1-5m\"\u003eMCP7H60-W01AR30\u003c\/a\u003e, 2 m \u003ca href=\"\/products\/nvidia-mellanox-compatible-mcp7h60-w002-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-2m\"\u003eMCP7H60-W002\u003c\/a\u003e and 3 m \u003ca href=\"\/products\/mcp7h60-w003-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-3m\"\u003eMCP7H60-W003\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNVIDIA ConnectX-7 \/ ConnectX-6 adapters (200G ports)\u003c\/li\u003e\n\u003cli\u003eNVIDIA DGX Spark and other GB10 systems (ASUS Ascent GX10, Dell Pro Max GB10, HP ZGX Nano AI Station) — switch-side breakout, one port to two nodes\u003c\/li\u003e\n\u003cli\u003eMikroTik CRS804-4DDQ and CRS812-8DS-2DQ-2DDQ 400G QSFP-DD switches\u003c\/li\u003e\n\u003cli\u003eOther QSFP-DD\/QSFP56 platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNVIDIA DGX Spark and GB10 Clustering\u003c\/h3\u003e\n\u003cp\u003eOne 400G QSFP-DD switch port fans out into two 200G QSFP56 legs, and each leg feeds one Spark at a full, unsplit 200G. The Spark's QSFP112 cage accepts a QSFP56 plug.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with MikroTik CRS804-4DDQ and CRS812 QSFP56-DD ports (set speed=200G-baseCR4 on lanes 1 and 5). Four DGX Sparks = 2 cables.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBreakout belongs on the switch end only.\u003c\/strong\u003e NVIDIA does not enable or validate port splitting on the DGX Spark's ConnectX-7. Use this cable to fan a switch port out to two Sparks — never the other way round.\u003c\/p\u003e\n\u003cp\u003eNot sure which length or how many? \u003ca href=\"\/pages\/dgx-spark-interconnect-reference\"\u003eSee the DGX Spark interconnect reference\u003c\/a\u003e or \u003ca href=\"\/pages\/request-a-quote\"\u003esend us your node count and switch model\u003c\/a\u003e.\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":50545820336228,"sku":"MCP7H60-W001","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/mcp7h60-w001-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1m_1_957d8f3c-4df4-4b47-b53d-fb71f4c10bb7.jpg?v=1793196838"},{"product_id":"mcp7h60-w003-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-3m","title":"MCP7H60-W003 NVIDIA\/Mellanox Compatible, 400G QSFP-DD to 2x200G QSFP56 Passive Breakout DAC Cable - 3m","description":"\u003ch2\u003eNVIDIA\/Mellanox Compatible 400G QSFP-DD to 2x200G QSFP56 Passive Breakout Direct Attach Copper (DAC) Cable - 3 Meters\u003c\/h2\u003e\n\u003cp\u003eThis third-party passive breakout DAC cable is compatible with NVIDIA\/Mellanox MCP7H60-W003R26: one 400G QSFP-DD switch port fans out to two 200G QSFP56 ports. The 3 m length uses 26 AWG wire to keep signal loss in budget, and reaches a switch in an adjacent rack or across a bench.\u003c\/p\u003e\n\u003cp\u003eSupports full 400Gbps (split to 2x200Gbps, 8x50G PAM4 lanes) with ultra-low latency and power. Backed by our \u003cstrong\u003elifetime warranty\u003c\/strong\u003e. New, with free standard shipping on all US orders.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLongest passive reach in the family\u003c\/strong\u003e: 3 m, 26 AWG — for a switch in the next rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play\u003c\/strong\u003e: Hot-pluggable connectors with pre-programmed EEPROM for NVIDIA\/Mellanox compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive and cool\u003c\/strong\u003e: No optics to power, cool or fail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e backed by Resilient Tec.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate\u003c\/strong\u003e: 400Gbps (400GbE, split to 2x200Gbps, 8x50Gbps PAM4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors\u003c\/strong\u003e: 1x QSFP-DD to 2x QSFP56\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLane Mapping\u003c\/strong\u003e: TX1-4 \/ RX1-4 to leg 1, TX5-8 \/ RX5-8 to leg 2 — each leg runs 200G CR4 (4 lanes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3 meters (9.8 ft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type\u003c\/strong\u003e: Passive Twinax Copper, 26 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e: IEEE 802.3cd, SFF-8665, QSFP-DD\/QSFP56 MSA, CMIS compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference\u003c\/strong\u003e: NVIDIA MCP7H60-W003R26 (26 AWG, 3 m); family documented as MCP7H60-W0xxRyy. Also sold as the 1 m \u003ca href=\"\/products\/mcp7h60-w001-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1m\"\u003eMCP7H60-W001\u003c\/a\u003e, 1.5 m \u003ca href=\"\/products\/mcp7h60-w01ar30-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1-5m\"\u003eMCP7H60-W01AR30\u003c\/a\u003e and 2 m \u003ca href=\"\/products\/nvidia-mellanox-compatible-mcp7h60-w002-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-2m\"\u003eMCP7H60-W002\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNVIDIA ConnectX-7 \/ ConnectX-6 adapters (200G ports)\u003c\/li\u003e\n\u003cli\u003eNVIDIA DGX Spark and other GB10 systems (ASUS Ascent GX10, Dell Pro Max GB10, HP ZGX Nano AI Station) — switch-side breakout, one port to two nodes\u003c\/li\u003e\n\u003cli\u003eMikroTik CRS804-4DDQ and CRS812-8DS-2DQ-2DDQ 400G QSFP-DD switches\u003c\/li\u003e\n\u003cli\u003eOther QSFP-DD\/QSFP56 platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNVIDIA DGX Spark and GB10 Clustering\u003c\/h3\u003e\n\u003cp\u003eOne 400G QSFP-DD switch port fans out into two 200G QSFP56 legs, and each leg feeds one Spark at a full, unsplit 200G. The Spark's QSFP112 cage accepts a QSFP56 plug.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with MikroTik CRS804-4DDQ and CRS812 QSFP56-DD ports (set speed=200G-baseCR4 on lanes 1 and 5). Four DGX Sparks = 2 cables.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBreakout belongs on the switch end only.\u003c\/strong\u003e NVIDIA does not enable or validate port splitting on the DGX Spark's ConnectX-7. Use this cable to fan a switch port out to two Sparks — never the other way round.\u003c\/p\u003e\n\u003cp\u003eNot sure which length or how many? \u003ca href=\"\/pages\/dgx-spark-interconnect-reference\"\u003eSee the DGX Spark interconnect reference\u003c\/a\u003e or \u003ca href=\"\/pages\/request-a-quote\"\u003esend us your node count and switch model\u003c\/a\u003e.\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":50545828724836,"sku":"MCP7H60-W003","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/mcp7h60-w003-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-3m_1_f91de798-ed36-4f7c-a26e-e3104e726640.jpg?v=1793196848"},{"product_id":"mcp7h60-w01ar30-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1-5m","title":"MCP7H60-W01AR30 NVIDIA\/Mellanox Compatible, 400G QSFP-DD to 2x200G QSFP56 Passive Breakout DAC Cable - 1.5m","description":"\u003ch2\u003eNVIDIA\/Mellanox Compatible 400G QSFP-DD to 2x200G QSFP56 Passive Breakout Direct Attach Copper (DAC) Cable - 1.5 Meter\u003c\/h2\u003e\n\u003cp\u003eThis third-party passive breakout DAC cable is compatible with NVIDIA\/Mellanox MCP7H60-W01AR30 (often searched as MCP7H60-W01A): one 400G QSFP-DD switch port fans out to two 200G QSFP56 ports. The 1.5 m length keeps the thin, flexible 30 AWG wire of the 1 m version while adding the extra reach to span a shelf or a few rack units between the switch and the nodes.\u003c\/p\u003e\n\u003cp\u003eSupports full 400Gbps (split to 2x200Gbps, 8x50G PAM4 lanes) with ultra-low latency and power. Backed by our \u003cstrong\u003elifetime warranty\u003c\/strong\u003e. New, with free standard shipping on all US orders.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra reach, still flexible\u003c\/strong\u003e: 1.5 m, 30 AWG — the longest 30 AWG length in the family, for when 1 m won't reach but you don't want the bulk of 26 AWG.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play\u003c\/strong\u003e: Hot-pluggable connectors with pre-programmed EEPROM for NVIDIA\/Mellanox compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive and cool\u003c\/strong\u003e: No optics to power, cool or fail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e backed by Resilient Tec.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Rate\u003c\/strong\u003e: 400Gbps (400GbE, split to 2x200Gbps, 8x50Gbps PAM4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors\u003c\/strong\u003e: 1x QSFP-DD to 2x QSFP56\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLane Mapping\u003c\/strong\u003e: TX1-4 \/ RX1-4 to leg 1, TX5-8 \/ RX5-8 to leg 2 — each leg runs 200G CR4 (4 lanes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1.5 meters (4.9 ft)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type\u003c\/strong\u003e: Passive Twinax Copper, 30 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to 70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e: IEEE 802.3cd, SFF-8665, QSFP-DD\/QSFP56 MSA, CMIS compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference\u003c\/strong\u003e: NVIDIA MCP7H60-W01AR30 (30 AWG, 1.5 m); family documented as MCP7H60-W0xxRyy. Also sold as the 1 m \u003ca href=\"\/products\/mcp7h60-w001-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1m\"\u003eMCP7H60-W001\u003c\/a\u003e, the 2 m \u003ca href=\"\/products\/nvidia-mellanox-compatible-mcp7h60-w002-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-2m\"\u003eMCP7H60-W002\u003c\/a\u003e and 3 m \u003ca href=\"\/products\/mcp7h60-w003-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-3m\"\u003eMCP7H60-W003\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNVIDIA ConnectX-7 \/ ConnectX-6 adapters (200G ports)\u003c\/li\u003e\n\u003cli\u003eNVIDIA DGX Spark and other GB10 systems (ASUS Ascent GX10, Dell Pro Max GB10, HP ZGX Nano AI Station) — switch-side breakout, one port to two nodes\u003c\/li\u003e\n\u003cli\u003eMikroTik CRS804-4DDQ and CRS812-8DS-2DQ-2DDQ 400G QSFP-DD switches\u003c\/li\u003e\n\u003cli\u003eOther QSFP-DD\/QSFP56 platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNVIDIA DGX Spark and GB10 Clustering\u003c\/h3\u003e\n\u003cp\u003eOne 400G QSFP-DD switch port fans out into two 200G QSFP56 legs, and each leg feeds one Spark at a full, unsplit 200G. The Spark's QSFP112 cage accepts a QSFP56 plug.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with MikroTik CRS804-4DDQ and CRS812 QSFP56-DD ports (set speed=200G-baseCR4 on lanes 1 and 5). Four DGX Sparks = 2 cables.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBreakout belongs on the switch end only.\u003c\/strong\u003e NVIDIA does not enable or validate port splitting on the DGX Spark's ConnectX-7. Use this cable to fan a switch port out to two Sparks — never the other way round.\u003c\/p\u003e\n\u003cp\u003eNot sure which length or how many? \u003ca href=\"\/pages\/dgx-spark-interconnect-reference\"\u003eSee the DGX Spark interconnect reference\u003c\/a\u003e or \u003ca href=\"\/pages\/request-a-quote\"\u003esend us your node count and switch model\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":67619385180260,"sku":"MCP7H60-W01AR30","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/mcp7h60-w01ar30-nvidia-mellanox-compatible-400g-qsfp-dd-to-2x200g-qsfp56-passive-breakout-dac-cable-1-5m_1_15b13a23-5cb2-48fa-a5e6-6b97ed1b59f4.jpg?v=1793196858"},{"product_id":"dgx-spark-cable-2-pack-njaakk-n911","title":"DGX Spark Cable 2-Pack: NJAAKK-N911 0.5m QSFP112 400G-Rated Passive DAC (2 Cables, NJAAKK-0006 Equivalent)","description":"\u003cp\u003e\u003cstrong\u003eTwo DGX Spark stacking cables for $329: $164.50 each, $19 less than buying them one at a time.\u003c\/strong\u003e Each is the same 0.5 m QSFP112 passive DAC as our single \u003ca href=\"\/products\/njaakk-n911-400g-qsfp112-passive-dac-stacking-cable-0-5m-nvidia-dgx-spark\"\u003eNJAAKK-N911\u003c\/a\u003e, built to the specification of the Amphenol NJAAKK-0006 that NVIDIA lists for DGX Spark.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e teams wiring two separate 2-node pairs, or anyone who wants a spare on the shelf\u003c\/li\u003e\n\u003cli\u003eFree U.S. shipping; ships same day on orders before 5 PM ET from Knoxville, Tennessee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e31-day returns, return shipping on us\u003c\/strong\u003e (\u003ca href=\"\/policies\/refund-policy\"\u003edetails\u003c\/a\u003e). Lifetime warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValidated on ConnectX-7\u003c\/strong\u003e in DGX Spark (\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/NJAAKK-N911_Compatibility_Report_a990a420-cf69-49bb-81dd-3b4a58b38693.pdf?v=1789753527\"\u003ecompatibility report\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eFits NVIDIA DGX Spark, ASUS Ascent GX10, Dell Pro Max GB10 and HP ZGX Nano AI Station\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e→ Building a 3-node cluster? The \u003cstrong\u003e\u003ca href=\"\/products\/dgx-spark-3-node-ring-cable-kit-njaakk-n911\"\u003e3-Node Ring Kit\u003c\/a\u003e\u003c\/strong\u003e includes all three cables for $475.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications (each cable)\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eNJAAKK-N911\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM equivalent\u003c\/td\u003e\n\u003ctd\u003eAmphenol NJAAKK-0006 (0.5 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eQSFP112 on both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable rating\u003c\/td\u003e\n\u003ctd\u003e400G-rated (4 x 100G lanes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLink speed on DGX Spark \/ GB10\u003c\/td\u003e\n\u003ctd\u003eUp to 200 Gb\/s per port (NVIDIA port limit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable type\u003c\/td\u003e\n\u003ctd\u003ePassive direct-attach copper (DAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e0.5 m (50 cm \/ 1.6 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort used\u003c\/td\u003e\n\u003ctd\u003eConnectX-7 QSFP port, Ethernet mode with RoCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition \/ warranty\u003c\/td\u003e\n\u003ctd\u003eNew \/ lifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eHow Many Cables Do You Need?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eNodes\u003c\/th\u003e\n\u003cth\u003eTopology\u003c\/th\u003e\n\u003cth\u003eSwitch\u003c\/th\u003e\n\u003cth\u003eCables\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003ePoint to point\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e1 × \u003ca href=\"\/products\/njaakk-n911-400g-qsfp112-passive-dac-stacking-cable-0-5m-nvidia-dgx-spark\"\u003esingle cable\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eRing (both ports per node)\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e3 × cable, the \u003ca href=\"\/products\/dgx-spark-3-node-ring-cable-kit-njaakk-n911\"\u003e3-Node Ring Kit\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4+\u003c\/td\u003e\n\u003ctd\u003eThrough a switch\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eOne 200G DAC per node. \u003ca href=\"\/blogs\/news\/can-you-build-4-node-dgx-spark-cluster-without-a-switch\"\u003eSee the 4-node options\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/how-to-connect-two-nvidia-dgx-spark-systems-the-cable-you-need-and-why\"\u003eHow to Connect Two NVIDIA DGX Spark Systems\u003c\/a\u003e · \u003ca href=\"\/pages\/dgx-spark-gb10-guide\"\u003eDGX Spark \u0026amp; GB10 Clustering Guide\u003c\/a\u003e\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":67773850648676,"sku":"NJAAKK-N911-2PK","price":329.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/IMG_4948_df15dc12-bddc-4a0b-af8c-e128a63e030a.jpg?v=1792516674"},{"product_id":"dgx-spark-3-node-ring-cable-kit-njaakk-n911","title":"DGX Spark 3-Node Ring Cable Kit: 3× NJAAKK-N911 0.5m QSFP112 400G-Rated Passive DAC (NJAAKK-0006 Equivalent)","description":"\u003cp\u003e\u003cstrong\u003eEverything you need to cable a three-node DGX Spark cluster, with no switch: three 0.5 m QSFP112 DACs for $475.\u003c\/strong\u003e That's $158.33 per cable, $47 less than buying three separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow the ring wires up:\u003c\/strong\u003e each Spark uses both of its ConnectX-7 QSFP ports. Connect Spark 1 to Spark 2, Spark 2 to Spark 3, and Spark 3 back to Spark 1. Port by port with setup steps: \u003ca href=\"\/blogs\/news\/how-to-connect-three-dgx-sparks-3-node-ring\"\u003eHow to Connect Three DGX Sparks: The 3-Node Ring\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFree U.S. shipping; ships same day on orders before 5 PM ET from Knoxville, Tennessee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e31-day returns, return shipping on us\u003c\/strong\u003e (\u003ca href=\"\/policies\/refund-policy\"\u003edetails\u003c\/a\u003e). Lifetime warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValidated on ConnectX-7\u003c\/strong\u003e in DGX Spark (\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/NJAAKK-N911_Compatibility_Report_a990a420-cf69-49bb-81dd-3b4a58b38693.pdf?v=1789753527\"\u003ecompatibility report\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eWorks with NVIDIA DGX Spark, ASUS Ascent GX10, Dell Pro Max GB10 and HP ZGX Nano AI Station, including mixed-brand rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e→ Going to four or more nodes? A switch is NVIDIA's supported route. \u003ca href=\"\/blogs\/news\/can-you-build-4-node-dgx-spark-cluster-without-a-switch\"\u003eSee the 4-node options\u003c\/a\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications (each cable)\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eNJAAKK-N911\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM equivalent\u003c\/td\u003e\n\u003ctd\u003eAmphenol NJAAKK-0006 (0.5 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eQSFP112 on both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable rating\u003c\/td\u003e\n\u003ctd\u003e400G-rated (4 x 100G lanes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLink speed on DGX Spark \/ GB10\u003c\/td\u003e\n\u003ctd\u003eUp to 200 Gb\/s per port (NVIDIA port limit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable type\u003c\/td\u003e\n\u003ctd\u003ePassive direct-attach copper (DAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e0.5 m (50 cm \/ 1.6 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort used\u003c\/td\u003e\n\u003ctd\u003eConnectX-7 QSFP port, Ethernet mode with RoCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition \/ warranty\u003c\/td\u003e\n\u003ctd\u003eNew \/ lifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/products\/njaakk-n911-400g-qsfp112-passive-dac-stacking-cable-0-5m-nvidia-dgx-spark\"\u003eNeed just one cable?\u003c\/a\u003e · \u003ca href=\"\/products\/dgx-spark-cable-2-pack-njaakk-n911\"\u003e2-Pack\u003c\/a\u003e · \u003ca href=\"\/pages\/dgx-spark-gb10-guide\"\u003eDGX Spark \u0026amp; GB10 Clustering Guide\u003c\/a\u003e\u003c\/p\u003e","brand":"Resilient Tec","offers":[{"title":"Default Title","offer_id":67773850681444,"sku":"NJAAKK-N911-3RING","price":475.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/IMG_4948_1de1a83e-44e0-4480-9ab3-53efed05b94f.jpg?v=1792516674"}],"url":"https:\/\/resilient-tec.com\/collections\/400g-dac-cables.oembed","provider":"Resilient Tec","version":"1.0","type":"link"}