NVIDIA Mellanox MCP1650-H01AE30 1.5-Meter HDR Passive Copper Cable QSFP56 200Gb/s: This is a 1.5-meter QSFP56-to-QSFP56 passive copper Direct Attach Cable (DAC) supporting InfiniBand HDR at 200Gb/s and 200GbE Ethernet. The cable uses 30 AWG copper conductors with an LSZH jacket and a black pulltab. This is a passive (un-amplified) DAC, not an active copper or active optical assembly. This is a new (factory-sealed) unit.
Engineering Context
The MCP1650-H01AE30 uses 4x 50Gb/s PAM4 lanes for an aggregate 200Gb/s line rate per the HDR specification. Passive copper at 1.5m is the lowest-latency, lowest-power interconnect option for top-of-rack server-to-switch links — zero added latency from optics or DSP and roughly 0.1W per end. The 30 AWG conductor gauge is appropriate for short reach where insertion loss budget is not critical. The LSZH jacket reduces toxic emissions during fire events, meeting modern data center fire-safety requirements.
Deployment & Use Cases
Top-of-rack QSFP56 server-to-switch links in InfiniBand HDR clusters. AI/ML compute fabrics using NVIDIA Quantum HDR switches (QM87xx series) and ConnectX-6 HDR adapters. Short-reach 200GbE Ethernet links on Spectrum-2 (SN3000) switches. NVIDIA DGX HDR fabric uplinks within a rack.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP1650-H01AE30
Form Factor: QSFP56 to QSFP56 (Point-to-Point)
Cable Type: Passive Copper Direct Attach Cable (DAC)
Length: 1.5m
Data Rate: 200Gb/s (4x 50Gb/s PAM4)
Conductor Gauge: 30 AWG
Jacket: LSZH (Low Smoke Zero Halogen)
Pulltab Color: Black
Protocol: InfiniBand HDR / 200GbE
Condition: New (Factory-Sealed)
Compatibility & Hard Constraints
Compatible with NVIDIA Quantum HDR switches (QM8700, QM8790), Spectrum-2 SN3000 series Ethernet switches, and ConnectX-6 HDR / VPI host adapters. Backward compatible with HDR100 (100Gb/s) and EDR (100Gb/s) ports at reduced rate. Not a breakout cable — this is point-to-point QSFP56 to QSFP56. Not a splitter to 2xQSFP28 or 4xSFP56; for 2x100G HDR100 splits, use the MCP7H50 series. Fixed 1.5m length; cannot be re-terminated.
Why Choose T.E.S IT-SOLUTIONS
At T.E.S IT-SOLUTIONS, every DAC is electrically tested and visually inspected before shipment. We provide expert consultation on InfiniBand HDR fabric topology and ConnectX-6 deployments, with 1–3 day handling time and worldwide shipping.