{"product_id":"qdd-400g-dr4-s-cisco-compatible-400gbase-dr4-qsfp-dd-pam4-transceiver-500m","title":"QDD-400G-DR4-S Cisco Compatible 400GBASE-DR4 QSFP-DD PAM4 Transceiver - 500m","description":"\u003ch2\u003eCisco QDD-400G-DR4-S Compatible 400GBASE-DR4 QSFP-DD PAM4 Optical Transceiver - 500m Reach\u003c\/h2\u003e\n\n\u003cp\u003eThis third-party QSFP-DD optical transceiver is fully compatible with Cisco QDD-400G-DR4-S, delivering 400Gbps Ethernet over parallel single-mode fiber (SMF) up to 500 meters. Ideal for high-bandwidth data center interconnects, AI\/HPC spine-leaf architectures, and hyperscale networks requiring longer reaches beyond copper\/DAC limits.\u003c\/p\u003e\n\n\u003cp\u003eBuilt to MSA standards with 4x100G PAM4 modulation, it features an MPO-12\/APC connector and digital diagnostics (DOM). Backed by our \u003cstrong\u003elifetime warranty\u003c\/strong\u003e and rigorous testing—enjoy 70-90% savings vs. genuine Cisco OEM while ensuring reliable, high-performance optics.\u003c\/p\u003e\n\n\u003cgrok-card data-id=\"8b8cf7\" data-type=\"image_card\" data-arg-size=\"LARGE\"\u003e\u003c\/grok-card\u003e\n\n\n\n\u003cgrok-card data-id=\"dacf15\" data-type=\"image_card\" data-arg-size=\"LARGE\"\u003e\u003c\/grok-card\u003e\n\n\n\n\u003cgrok-card data-id=\"86a926\" data-type=\"image_card\" data-arg-size=\"LARGE\"\u003e\u003c\/grok-card\u003e\n\n\n\n\u003cgrok-card data-id=\"870645\" data-type=\"image_card\" data-arg-size=\"LARGE\"\u003e\u003c\/grok-card\u003e\n\n\n\n\u003cgrok-card data-id=\"9b3330\" data-type=\"image_card\" data-arg-size=\"LARGE\"\u003e\u003c\/grok-card\u003e\n\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMassive Cost Savings\u003c\/strong\u003e: Premium compatible optics at refurbished\/third-party pricing—scale AI and data center networks affordably.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePlug-and-Play\u003c\/strong\u003e: Hot-pluggable QSFP-DD form factor with pre-programmed EEPROM for seamless Cisco compatibility.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: 500m over parallel SMF—perfect complement to short-reach SR8 or DACs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e: Fully tested with certification reports; same-day shipping available.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUse Cases\u003c\/strong\u003e: Spine-leaf links in large AI clusters, data center interconnections (DCI), or high-throughput storage fabrics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eData Rate\u003c\/strong\u003e: 400Gbps (400GBASE-DR4, 4x106.25Gbps PAM4)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWavelength\u003c\/strong\u003e: 1310nm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConnector\u003c\/strong\u003e: MPO-12\/APC (parallel SMF)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReach\u003c\/strong\u003e: Up to 500 meters on single-mode fiber\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePower Consumption\u003c\/strong\u003e: ≤12W\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 802.3bs, QSFP-DD MSA, CMIS 4.0, RoHS\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e: Digital Optical Monitoring (DOM\/DDM) support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eProgrammed for full compatibility with Cisco platforms and MSA-compliant systems, including:\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003eCisco Nexus 9000\/3000 series (400G ports)\u003c\/li\u003e\n    \u003cli\u003eCisco ACI and data center switches\u003c\/li\u003e\n    \u003cli\u003eArista 7800R\/7500R series\u003c\/li\u003e\n    \u003cli\u003eJuniper QFX5700 and other QSFP-DD platforms\u003c\/li\u003e\n    \u003cli\u003eNVIDIA\/Mellanox (in Ethernet mode) and Broadcom-based systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eRequires MPO-12 parallel SMF cabling (not included). Need FR4 longer-reach, breakout options, or bulk quotes? \u003cstrong\u003eContact us\u003c\/strong\u003e—we're experts in 400G optics for AI workloads.\u003c\/p\u003e","brand":"ShopITgear","offers":[{"title":"Default Title","offer_id":47923345391716,"sku":"QDD-400G-DR4-S","price":689.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/QDD-400G-DR4-S.jpg?v=1771295914","url":"https:\/\/resilient-tec.com\/products\/qdd-400g-dr4-s-cisco-compatible-400gbase-dr4-qsfp-dd-pam4-transceiver-500m","provider":"Resilient Tec, LLC","version":"1.0","type":"link"}