{"product_id":"mcp4y10-n001-osfp-400g-ndr-infiniband-passive-dac-cable-1m-nvidia-dgx-h100-h200-1","title":"MCP4Y10-N001 OSFP 400G NDR InfiniBand Passive DAC Cable, 1m – NVIDIA DGX H100\/H200","description":"\u003cp\u003e\u003cstrong\u003eOEM-equivalent — NVIDIA DGX H100\/H200 NDR InfiniBand cable\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e MCP4Y10-N001 (NVIDIA \/ Mellanox)\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e OSFP Passive Direct Attach Copper (DAC) cable, 400G NDR InfiniBand-rated, 1m (3.3 ft)\u003c\/p\u003e\n\u003cp\u003eThe MCP4Y10-N001 is a single-port OSFP-to-OSFP passive direct-attach copper cable from NVIDIA's 400G OSFP LinkX line. It provides a direct, switch-free NDR InfiniBand link between two NVIDIA DGX H100\/H200 systems at up to 400 Gb\/s per port.\u003c\/p\u003e\n\u003cp\u003eOn the DGX H100\/H200, the ConnectX-7 cluster network is exposed through OSFP ports on the rear of the system. You plug one end of this cable into an OSFP port on the first node and the other end into the matching OSFP port on the second node to link two units directly — no Quantum-2 switch required for a two-node topology. For deployments of three or more nodes, a Quantum-2 InfiniBand switch is used instead of direct DAC connections.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eValue\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMCP4Y10-N001 (NVIDIA \/ Mellanox)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eOSFP (single port, both ends)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCable Rating\u003c\/td\u003e\n\u003ctd\u003e400G NDR InfiniBand (4 x 100G-PAM4 lanes)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLink speed on DGX H100\/H200\u003c\/td\u003e\n\u003ctd\u003eUp to 400 Gb\/s per port\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\u003e1 m (3.3 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eOSFP on both ends\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePort Used\u003c\/td\u003e\n\u003ctd\u003eConnectX-7 OSFP InfiniBand port\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFabric\u003c\/td\u003e\n\u003ctd\u003eNDR InfiniBand (Quantum-2 platform)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eWhich Port Does This Use?\u003c\/h2\u003e\n\u003cp\u003eEach DGX H100\/H200 has four OSFP cage positions serving eight single-port ConnectX-7 InfiniBand cards on the compute\/cluster fabric. This cable plugs into those OSFP ports. Note that the DGX H100\/H200 uses OSFP connectors — not QSFP-DD — for its NDR InfiniBand links.\u003c\/p\u003e\n\u003cp\u003eAvoid QSFP-DD DACs (for example, the MCP1660-W-series) for this connection. Those are 400GbE Ethernet cables for Spectrum switches and will not carry NDR InfiniBand on the DGX's OSFP ports.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConnects two DGX H100\/H200 nodes directly — no switch, transceivers, or adapters required\u003c\/li\u003e\n  \u003cli\u003e1 m suits adjacent-rack placement; choose a 2 m length (MCP4Y10-N002) if the nodes sit in different rack positions\u003c\/li\u003e\n  \u003cli\u003ePassive copper keeps power and latency low for short two-node runs\u003c\/li\u003e\n  \u003cli\u003eThe OSFP ports run NDR InfiniBand, not Ethernet, for GPU-to-GPU collective communication (NCCL)\u003c\/li\u003e\n  \u003cli\u003eCable support is ultimately governed by ConnectX-7 firmware; confirm against NVIDIA's official LinkX OSFP parts list\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 DGX H100 or H200 nodes with ConnectX-7 NDR OSFP ports. You want to link them directly, switch-free, for a two-node cluster. You need a single-port OSFP-to-OSFP passive copper NDR InfiniBand DAC. You want a 1 m length (or 2 m via MCP4Y10-N002) sized to your rack layout.\u003c\/p\u003e\n  \u003chr\u003e\n  \u003ch2\u003eRelated Guides\u003c\/h2\u003e\n  \u003cp\u003e\u003ca href=\"\/blogs\/news\/how-to-connect-two-nvidia-dgx-h100-h200-systems-via-ndr-infiniband-dac\"\u003eHow to Connect Two NVIDIA DGX H100\/H200 Systems via NDR InfiniBand DAC\u003c\/a\u003e\u003c\/p\u003e\n  \u003chr\u003e\n  \u003cp\u003e\u003cstrong\u003eCOMPATIBILITY DOCUMENTATION\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eCompatibility report: add MCP4Y10-N001 compatibility PDF here.\u003c\/p\u003e\n  \u003cp\u003eGuide should include: DGX H100\/H200 OSFP port verification, ConnectX-7 NDR (not HDR) confirmation, and two-node direct-connect setup notes.\u003c\/p\u003e","brand":"Resilient Tec, LLC","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\/MCP1660-W001E30.png?v=1780438141","url":"https:\/\/resilient-tec.com\/products\/mcp4y10-n001-osfp-400g-ndr-infiniband-passive-dac-cable-1m-nvidia-dgx-h100-h200-1","provider":"Resilient Tec","version":"1.0","type":"link"}