NVIDIA Mellanox MCP1650-H00AE30 200Gb/s HDR QSFP56 Passive Copper DAC, 0.5m, 30AWG, LSZH: This is a 0.5-meter passive copper direct attach cable (DAC) for InfiniBand HDR 200Gb/s point-to-point interconnects. The QSFP56 form factor uses 4 lanes of 50Gb/s PAM4 signaling. This is a passive copper assembly with no active components and no power draw — it is not an active copper cable (ACC) and not an active optical cable (AOC). This is a refurbished unit.
Engineering Context
The MCP1650-H00AE30 is engineered for in-rack HDR fabric connections where reach is short and power efficiency is critical. As a passive cable, it draws no power from either host port and adds no signal regeneration latency beyond physical propagation. The 30 AWG conductor gauge keeps the assembly thin and flexible for high-density patching. The LSZH jacket emits no halogen compounds in fire conditions. PAM4 signalling at 50Gb/s per lane requires receiver equalisation in the host ASIC; passive copper at this rate is generally limited to 2m maximum.
Deployment & Use Cases
Top-of-Rack to compute node HDR connections inside a single rack. GPU server to NVIDIA Quantum HDR switch interconnects in HPC and AI training clusters. Storage array to InfiniBand fabric uplinks where short, low-latency, low-power connectivity is required. Deployments standardised on 30 AWG cabling for unified bend radius and tray density.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP1650-H00AE30
Form Factor: QSFP56 to QSFP56 (Point-to-Point)
Data Rate: InfiniBand HDR 200Gb/s (4x 50Gb/s PAM4)
Cable Type: Passive Copper DAC
Length: 0.5m
Conductor Gauge: 30 AWG
Jacket: LSZH (Low Smoke Zero Halogen)
Protocol: InfiniBand HDR
Power Draw: 0W (passive)
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Quantum HDR switches (QM87xx, QM97xx) and ConnectX-6, ConnectX-6 Dx, ConnectX-7 HDR-capable adapters. Both ends require QSFP56 ports configured for HDR. Not compatible with EDR-only QSFP28 ports — physical fit may overlap, but the host ASIC must support 50Gb/s PAM4 lanes. Not an active cable; reach beyond 2m at HDR rates is generally not achievable with passive copper. Fixed 0.5m length and 30 AWG gauge.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every DAC for continuity, return loss, and connector latch integrity before shipment. Visit tes-itsolutions.com for catalog access. Handling time 1–3 business days, global shipping, and expert consultation on InfiniBand HDR fabric cabling.