NVIDIA Mellanox MCP7H60-W02AR26 400GbE QSFP-DD to 2x 200GbE QSFP56 Passive Copper Splitter (DAC), 2.5m, 26AWG: This is a 2.5-meter passive copper Direct Attach Cable splitter built for Ethernet, providing one 400GbE QSFP-DD input and two independent 200GbE QSFP56 outputs at 26AWG. This is a passive copper cable for Ethernet fabrics — it is NOT an InfiniBand NDR cable, NOT an active copper (ACC) cable, and NOT an AOC. The output connectors are QSFP56 only, not OSFP or QSFP28. This is a NEW unit.
Engineering Context
The MCP7H60-W02AR26 splits a 400GbE port into two 200GbE links using PAM4 signaling at 50Gb/s per lane (4 lanes per output). Passive 26AWG construction provides usable reach to 2.5m without active electronics, keeping latency deterministic and power draw at 0W. The cable is designed for direct-attach use between adjacent racks; the 26AWG gauge keeps the assembly slightly more flexible than larger-diameter copper at the same length, but it remains a stiff bundle that should not be forced through tight bends.
Deployment & Use Cases
Splitting a 400GbE spine port into two 200GbE leaf uplinks in NVIDIA Spectrum Ethernet fabrics. Connecting a 400GbE switch port to two ConnectX-6 Dx 200GbE adapters. Top-of-rack to mid-rack server aggregation in cloud and HPC Ethernet deployments. Cost-optimized 400G/200G fan-out where active cabling is not required.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MCP7H60-W02AR26
Form Factor: QSFP-DD (input) to 2x QSFP56 (outputs)
Aggregate Data Rate: 400GbE
Per-Leg Data Rate: 200GbE (each output)
Cable Type: Passive Copper Splitter DAC
Length: 2.5m
Wire Gauge: 26AWG
Signaling: PAM4 (50Gb/s per lane)
Protocol: Ethernet (400GbE / 200GbE)
Power Draw: 0W (passive)
Condition: NEW — Factory-sealed, supplied by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Spectrum-3 (SN4000 series) 400GbE switches and ConnectX-6 / ConnectX-6 Dx 200GbE QSFP56 adapters. Requires switch ports configured for 2x 200GbE breakout mode. NOT compatible with InfiniBand NDR, OSFP, QSFP28 (100GbE), or QSFP-DD outputs — output legs are QSFP56 only. Will not interoperate with the W001R30 (1m, 30AWG) or W002R26 (2m, 26AWG) variants from a length-substitution standpoint; pick the variant that matches your physical reach. Fixed 2.5m length and not field-terminable.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS supplies NEW MCP7H60-W02AR26 cables in factory packaging, verified for connector keying and lane integrity before dispatch. We answer Ethernet fabric breakout questions, ship globally with a 1–3 day handling window, and back every part with our return policy. Visit tes-itsolutions.com for our full NVIDIA Mellanox catalog.