NVIDIA Mellanox MCP4Y10-N01A InfiniBand NDR 800Gb/s OSFP-to-OSFP Passive Copper Cable (DAC), 1.5m: This is a 1.5-meter passive copper Direct Attach Cable providing a single point-to-point link with OSFP connectors on both ends. It is engineered for InfiniBand NDR fabrics with PAM4 signaling at 100Gb/s per lane. This is a passive cable — no retimers, no DSP, zero power draw. This is NOT a splitter cable, NOT an active copper (ACC) cable, NOT an AOC, and the connectors are NOT QSFP-DD or QSFP112. This is a refurbished unit.
Engineering Context
The MCP4Y10-N01A is a single-link 800Gb/s OSFP cable, used where an unsplit 800G connection is required between two NDR endpoints. 1.5m is positioned in the upper passive 800G envelope, balancing reach against signal margin; longer spans require ACC or AOC equivalents. The OSFP form factor provides the thermal and electrical headroom needed for 100Gb/s/lane PAM4. Passive construction yields deterministic latency and 0W power draw, both important for synchronous AI training and tightly-coupled HPC workloads.
Deployment & Use Cases
Switch-to-switch 800Gb/s NDR uplinks within a single rack or between adjacent racks. ConnectX-7 OSFP NIC to NVIDIA Quantum-2 switch direct attach for GPU compute nodes. Spine-to-leaf interconnects in NDR InfiniBand topologies under 1.5m. AI training clusters where a passive option is preferred for power and latency reasons.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP4Y10-N01A
Form Factor: OSFP to OSFP (point-to-point)
Data Rate: 800Gb/s
Cable Type: Passive Copper DAC
Length: 1.5m
Signaling: PAM4 (100Gb/s per lane, 8 lanes)
Protocol: InfiniBand NDR
Power Draw: 0W (passive)
Topology: 1:1 point-to-point (NOT a splitter)
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Quantum-2 InfiniBand switches and ConnectX-7 OSFP adapters operating in 800G NDR mode. Both ends are OSFP. NOT compatible with QSFP-DD, QSFP112, or QSFP56 ports, and not for Ethernet-only fabrics. This is a single-link cable — it does not split into 2x 400G; for breakout use the MCP7Y00 series instead. Confirm the OSFP thermal style on each port (Flat-Top vs. Riding Heat Sink) matches the cable connector before installation. Fixed 1.5m length and not field-terminable.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS validates each MCP4Y10-N01A for end-to-end lane integrity at NDR rates before shipment. We answer NDR fabric design questions, ship globally with a 1–3 day handling window, and back every part with our return policy. Visit tes-itsolutions.com for our full NVIDIA Mellanox catalog.