NVIDIA Mellanox MCP7H50-V02A 200Gb/s QSFP56 to 2x 100Gb/s QSFP56 Passive Copper Hybrid Splitter Cable, 2.5m, 26AWG: This is a passive copper hybrid breakout cable that splits one 200Gb/s QSFP56 port into two 100Gb/s QSFP56 connections. Total length is 2.5 meters with 26AWG conductors. This is a 1-to-2 splitter, not a 1-to-1 QSFP56 straight cable and not an active optical cable. This is a refurbished unit.
Engineering Context
The MCP7H50-V02A uses 4x50G PAM4 lanes on the trunk QSFP56 end and splits them into two QSFP56 connectors each carrying 2x50G PAM4 lanes for 100Gb/s. Passive copper means zero added latency from electronics and no power draw. 26AWG conductors deliver a 2.5m reach suitable for in-rack or adjacent-rack runs. The cable supports both InfiniBand HDR (200Gb/s) and 200GbE Ethernet on the trunk side, breaking out to HDR100 (100Gb/s InfiniBand) or 100GbE on the branch side. RS-FEC is required at this signaling rate.
Deployment & Use Cases
HDR (200Gb/s) InfiniBand switch ports breaking out to two HDR100 (100Gb/s) ConnectX-6 adapters. 200GbE QSFP56 switch ports breaking out to two 100GbE QSFP56 servers. Aggregating dual storage nodes into a single high-radix Quantum (HDR) or Spectrum-2 (200GbE) switch port. Top-of-rack to dual NIC server connections in HPC and AI clusters.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP7H50-V02A
Cable Type: Passive Copper Hybrid Splitter
Connector A (Trunk): QSFP56 (4x50G PAM4)
Connector B (Branch): 2x QSFP56 (2x50G PAM4 each)
Trunk Rate: 200Gb/s (HDR InfiniBand or 200GbE)
Branch Rate: 2x 100Gb/s (HDR100 or 100GbE)
Length: 2.5 meters
Conductor Gauge: 26AWG
Power: Passive (no power draw)
FEC: RS-FEC required
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Trunk-side requires a switch port that supports 2:1 breakout to HDR100/100GbE (e.g., NVIDIA Quantum HDR switches, Spectrum-2 SN3000 series 200GbE platforms with breakout firmware). Branch ports must be QSFP56 capable of 100Gb/s (HDR100 or 100GbE); not compatible with QSFP28 cages without proper interop verification. This cable does not function as a 1-to-1 QSFP56 cable. Passive copper limits reach to the supplied 2.5m — for longer runs a different SKU (active copper or AOC) is required. Both HDR IB and 200GbE Ethernet require RS-FEC enabled on link partners.
Frequently Asked Questions (FAQ)
Q. What is the MCP7H50-V02A?
The MCP7H50-V02A is a 2.5m passive copper DAC with QSFP56 connectors on both ends, rated for 200GbE Ethernet.
Q. Is this a splitter cable?
No. It is a straight 1-to-1 QSFP56-to-QSFP56 point-to-point assembly.
Q. Will T.E.S IT-SOLUTIONS confirm the configuration of MCP7H50-V02A before shipping?
Yes. T.E.S IT-SOLUTIONS (tes-itsolutions.com) bench-tests each unit where test topology is available, before dispatch from EU stock.

Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS verifies connector integrity, lane continuity, and EEPROM identity on every passive copper cable before shipment. We provide expert consultation on HDR InfiniBand and 200GbE Ethernet cabling, global shipping, and 1–3 day handling. Visit tes-itsolutions.com for our full catalog.