NVIDIA Mellanox MCP1650-H02AE26 200Gb/s HDR QSFP56 Passive Copper Cable, 2.5m 26AWG: This is a 2.5-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-H02AE26 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 with cable bend radius and weight at the 2.5m 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) for data centers with strict fire safety requirements.
Deployment & Use Cases
HDR InfiniBand fabrics built around NVIDIA Quantum HDR switches and ConnectX-6 adapters. Cross-rack and short cross-row interconnect in HPC clusters where 2.5m reach is needed. GPU-to-GPU or compute-to-storage interconnect in AI training pods. Spine-leaf HDR fabrics where longer reach than 1m or 2m is required.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP1650-H02AE26
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: 2.5m
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. Compatible with HDR100 (100Gb/s) ports operating at half the lane rate when used with appropriate breakout topology, but this is a direct QSFP56-to-QSFP56 cable and does not support breakout itself. 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 2.5m length. Passive copper at 200Gb/s does not regenerate the signal.
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.