NVIDIA Mellanox MCP1650-H002 200Gb/s HDR QSFP56 Passive Copper Cable, 2m 26AWG: This is a 2-meter passive direct-attach copper (DAC) cable engineered for HDR InfiniBand (200Gb/s) point-to-point interconnect. The cable terminates in QSFP56 connectors at both ends, uses 26 AWG conductors, and requires no external power. This is a fixed-length passive assembly, not an active or optical cable. This unit is brand new.
Engineering Context
The MCP1650-H002 is a passive copper cable optimized for short-reach HDR InfiniBand interconnect at the rack level. The QSFP56 form factor carries 4 lanes of 50Gb/s PAM4 signaling for the aggregate 200Gb/s rate. The 26 AWG conductor gauge balances signal integrity against cable bend radius and weight at the 2m reach. As a passive cable it draws no operational power and adds no signal regeneration latency. The pulltab is black and the jacket is LSZH (Low Smoke Zero Halogen).
Deployment & Use Cases
HDR InfiniBand fabrics built around NVIDIA Quantum HDR switches and ConnectX-6 adapters. Top-of-rack to compute node connections in HPC and AI clusters. GPU-to-GPU or compute-to-storage interconnect in AI training pods. Spine-leaf HDR fabrics where 2m reach matches rack geometry.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP1650-H002
Form Factor: QSFP56 to QSFP56 (Point-to-Point)
Data Rate: Up to 200Gb/s (4x 50Gb/s PAM4)
Cable Type: Passive Direct-Attach Copper (DAC)
Length: 2m
Conductor Gauge: 26 AWG
Jacket: LSZH (Low Smoke Zero Halogen)
Protocol: InfiniBand HDR
Pulltab: Black
Power: Passive (no external power required)
Condition: New — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Quantum HDR InfiniBand switches (QM8700, QM8790) and ConnectX-6 HDR adapters. Direct QSFP56-to-QSFP56 cable; does not support 4x25G or 2x100G breakout. Not compatible with EDR (100Gb/s) or QDR (40Gb/s) systems that use the older QSFP28/QSFP+ form factor. Reach is bounded by the fixed 2m length. Passive copper at 200Gb/s does not regenerate the signal; for longer spans use AOCs or optical transceivers.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every passive copper cable for electrical continuity, lane integrity, and connector condition before shipment. Visit tes-itsolutions.com for the full NVIDIA Mellanox catalog. Standard handling time is 1–3 business days with global shipping and warranty support.