NVIDIA Mellanox MCP7H50-H002 QSFP56 InfiniBand HDR Passive Copper Hybrid Splitter Cable, 200Gb/s to 2x100Gb/s, 2m: This is a passive copper hybrid splitter cable (DAC) with one QSFP56 connector on the host end and two QSFP56 connectors on the breakout end. It splits a single 200Gb/s HDR switch port into two independent 100Gb/s HDR (HDR100) links. This is a passive assembly with no optics or DSP, and is not an active optical cable, an Ethernet-only DAC, or a 200G-to-200G point-to-point cable. This is a refurbished unit tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MCP7H50-H002 uses 26AWG copper conductors to keep insertion loss low across the 2-meter span, preserving signal margin for HDR PAM4 signaling on the 200G side and NRZ on the 100G HDR100 legs. The Low Smoke Zero Halogen (LSZH) jacket meets data center fire-safety codes and improves rack-density handling. As a passive cable, it draws zero power and adds deterministic, sub-microsecond physical-layer latency, which matters for tightly synchronized AI training and HPC collective operations. Color-coded splitter legs simplify rack-side identification during build-out.
Deployment & Use Cases
AI and GPU training clusters where two ConnectX-6 or ConnectX-7 HDR100 adapters share a single 200G HDR Quantum switch port. HPC fabrics doubling effective port density on Quantum-1 (QM87xx) leaf or spine switches. Phased migration deployments where existing 100G HDR100 endpoints connect to new 200G HDR aggregation. Storage front-end aggregation where two 100G hosts feed a 200G fabric uplink.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP7H50-H002
Cable Type: Passive Copper Hybrid Splitter DAC
Connectivity: QSFP56 (1) to QSFP56 (2) breakout
Data Rate: 200Gb/s to 2x 100Gb/s (HDR to HDR100)
Lane Signaling: PAM4 on 200G side
Length: 2 meters
Wire Gauge: 26 AWG
Jacket: LSZH (Low Smoke Zero Halogen)
Condition: Refurbished - Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with NVIDIA Quantum HDR InfiniBand switches (QM87xx series) and ConnectX-6 or ConnectX-7 HDR adapters. The source QSFP56 switch port MUST be configured for split (fan-out) mode in the switch software before this cable will pass traffic. Each breakout leg operates as an HDR100 link. Not compatible with QSFP-DD ports, NDR (400G) ports, or Ethernet-only QSFP+/QSFP28 switches. Not for 200G to 200G point-to-point use; for that, a non-splitter MCP1650-Hxxx cable is required. Fixed 2m length.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS electrically validates every HDR splitter cable for PAM4 signaling integrity, lane mapping, and connector condition before shipment. We provide expert consultation on InfiniBand HDR fabric topology, global shipping, and warranty coverage. Visit https://www.tes-itsolutions.com/ for the full Mellanox catalog. Handling time: 1-3 business days.