NVIDIA Mellanox MCP4Y10-N001 800G InfiniBand NDR Passive Copper DAC, OSFP-to-OSFP RHS, 1m: This is a 1-meter passive Direct Attach Copper cable engineered for 800Gb/s InfiniBand NDR connectivity between OSFP RHS (Riding Heat Sink, finned-top) ports. NVIDIA P/N 980-9IA0F-00N001. The cable is a pure copper electrical assembly with no retimers, DSPs, or active components. This is NOT an AOC, NOT a flat-top OSFP Ethernet cable, and NOT a transceiver with a detachable patch cord. Condition: Refurbished — tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MCP4Y10-N001 carries 8 lanes of 100Gb/s PAM4 (8x100G) to deliver 800Gb/s aggregate over passive copper at 1m reach. Power consumption is 0W on the cable itself; latency is bounded by physical propagation only. The OSFP RHS connector includes an integrated finned heatsink riding on top of the housing, which is required to dissipate heat from the high-power NDR-class host ports — a thermal interface that flat-top OSFP cages cannot accommodate.
Deployment & Use Cases
In-rack switch-to-NIC links between NVIDIA Quantum-2 NDR switches and ConnectX-7 NDR HCAs. Switch-to-switch interconnects within the same rack on Quantum-2 NDR fabrics. GPU compute node interconnects in DGX H100 and HGX H100 racks where 800G NDR is the chosen fabric. AI training clusters and HPC supercomputing nodes requiring deterministic, lowest-latency physical-layer connectivity over short distances.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP4Y10-N001 (NVIDIA P/N 980-9IA0F-00N001)
Form Factor: OSFP RHS (Riding Heat Sink, finned-top) to OSFP RHS
Cable Type: Passive Copper DAC (PCC)
Data Rate: 800Gb/s InfiniBand NDR
Lane Configuration: 8 lanes x 100Gb/s PAM4
Length: 1m
Power: 0W (passive)
Latency: Bounded by physical propagation; no electronics
Condition: Refurbished — tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Quantum-2 NDR InfiniBand switches and ConnectX-7 NDR HCAs that expose OSFP RHS ports. The RHS heatsink form factor is mechanically incompatible with flat-top OSFP cages used on most Ethernet switches — do not attempt to seat this cable in a flat-top OSFP port. Not for InfiniBand HDR (200G), EDR (100G), or earlier generations as the lane structure differs. Not for 400GbE or 800GbE Ethernet ports unless those ports are explicitly OSFP RHS. Passive 800G DAC construction uses thicker copper than 100G/200G DACs, so it is stiffer and best suited to straight, short, in-rack runs. Fixed 1m length.
Why Choose T.E.S IT-SOLUTIONS
Every refurbished MCP4Y10-N001 is inspected, cleaned, and link-tested by T.E.S IT-SOLUTIONS for NDR lane stability and OSFP RHS thermal seating before dispatch. Handling time 1-3 business days, secure international shipping, and expert support on Quantum-2 and ConnectX-7 fabric design.