{"product_id":"njaakk-n911-qsfp112-400g-rated-passive-dac-cable-0-5m-hp-zgx-nano-ai-station-dual-system-interconnect-nvidia-dgx-spark-approved-resilient-tec","title":"NJAAKK-N911 QSFP112 400G-Rated Passive DAC Cable, 0.5m | HP ZGX Nano AI Station Dual-System Interconnect | NVIDIA DGX Spark Approved | Resilient Tec","description":"\u003cp\u003e\u003cstrong\u003eHP ZGX Nano AI Station — NVIDIA DGX Spark approved cable (OEM-equivalent)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e NJAAKK-N911 (Amphenol)\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e QSFP112 Passive Direct Attach Copper (DAC) cable, 400G-rated, 0.5m (1.6 ft)\u003c\/p\u003e\n\u003cp\u003eThe NJAAKK-N911 is one of the two cables NVIDIA lists as approved for connecting DGX Spark systems, alongside the Luxshare \u003cstrong\u003eLMTQF022-SD-R\u003c\/strong\u003e. It is a 0.5m passive direct-attach copper cable with QSFP112 connectors on both ends, rated for up to 400G on hardware that supports it.\u003c\/p\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 two 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 two units together and for standard Ethernet \/ RoCE networking.\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 (Amphenol)\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 (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\u003c\/td\u003e\n\u003ctd\u003eListed as an approved DGX Spark cable (with Luxshare LMTQF022-SD-R)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eWhich Port Does This Use?\u003c\/h2\u003e\n\u003cp\u003eEach DGX Spark (and each OEM GB10 system) has \u003cstrong\u003etwo ConnectX-7 QSFP ports\u003c\/strong\u003e on the rear panel. These same ports are used both to connect two units together and for general Ethernet \/ RoCE networking. NVIDIA caps each port at up to 200 Gb\/s, and notes that using a higher-speed cable does not increase the link rate because the port itself is the limit.\u003c\/p\u003e\n\u003cp\u003eNVIDIA lists two approved cables for this connection:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNJAAKK-N911\u003c\/strong\u003e (Amphenol) — this product\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLMTQF022-SD-R\u003c\/strong\u003e (Luxshare) — the functionally equivalent alternative\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/q56-200g-cu0-5-0-5-meter-1-6-ft-200g-qsfp56-passive-direct-attach-copper-dac-dgx-spark\"\u003eMCP1650-V00AE30 (200G QSFP56 DAC)\u003c\/a\u003e is not the part NVIDIA names, but it is a viable, tried-and-tested lower-cost 200G option that our customers have used successfully to stack these systems, with no reported issues.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConnects two 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; NVIDIA references short passive DAC lengths for this use\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\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eQuick Checklist — Is This the Right Cable?\u003c\/h2\u003e\n\u003cp\u003eYou have two GB10-based systems (NVIDIA DGX Spark or an HP \/ Dell \/ ASUS equivalent). You want to link them directly through their ConnectX-7 QSFP ports. You want an NVIDIA-approved DGX Spark cable (NJAAKK-N911 or LMTQF022-SD-R). You need a 0.5 m passive copper cable with QSFP112 connectors on both ends.\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, Who Needs It, 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\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\/NJAAKK-N911_Compatibility_Report_bedab52f-2d7c-4b5a-8af1-10549419e7ab.pdf?v=1782784510\"\u003eNJAAKK-N911_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","brand":"NVIDIA","offers":[{"title":"Default Title","offer_id":48895298207844,"sku":"NJAAKK-N911","price":187.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/Screenshot_2026-06-24_102744.png?v=1782311353","url":"https:\/\/resilient-tec.com\/products\/njaakk-n911-qsfp112-400g-rated-passive-dac-cable-0-5m-hp-zgx-nano-ai-station-dual-system-interconnect-nvidia-dgx-spark-approved-resilient-tec","provider":"Resilient Tec","version":"1.0","type":"link"}