NVIDIA Mellanox MC2207126-005 QSFP FDR 56Gb/s VPI Passive Copper Cable, 5m: This is a 5-meter passive copper QSFP-to-QSFP cable for VPI (Virtual Protocol Interconnect) operation, supporting both InfiniBand FDR (56 Gb/s) and Ethernet up to 56 GbE on Mellanox VPI hosts. The cable is a fixed-length integrated assembly with EEPROM-coded ends; it is not a transceiver pair with a removable patch cord. This listing is a lot of 3 refurbished units, tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MC2207126-005 is built around 4 lanes of 14 Gb/s NRZ signaling, aggregating to 56 Gb/s per port. As a passive cable, it draws no port power and requires no active signal conditioning at this length. On Mellanox VPI hosts (ConnectX-3 VPI, ConnectX-3 Pro VPI, SwitchX-2 VPI), the same physical cable carries InfiniBand FDR or 56GbE Ethernet depending on port configuration. EEPROM data identifies the cable as a Mellanox-certified VPI assembly so the host configures lane training automatically.
Deployment & Use Cases
InfiniBand FDR HPC clusters with ConnectX-3 VPI HCAs and SX6000 series switches. RDMA-over-Ethernet (RoCE) fabrics at 40/56GbE on SwitchX-2 platforms. Storage networks running iSER or NVMe-oF over InfiniBand. GPU compute interconnects in mixed-protocol environments. Cost-effective rebuild of legacy FDR fabrics where new spares are no longer in distribution.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MC2207126-005
Form Factor: QSFP to QSFP (Point-to-Point)
Data Rate: 56 Gb/s (4x14 Gb/s NRZ)
Cable Type: Passive Copper
Length: 5 m
Protocols: InfiniBand FDR, Ethernet up to 56GbE (VPI)
Conductor: Copper
Lot Quantity: 3 units
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Mellanox SX6000-series InfiniBand FDR switches, SwitchX-2 VPI switches, and ConnectX-3 VPI / ConnectX-3 Pro VPI adapters. Operates as InfiniBand FDR or Ethernet 40/56GbE depending on host port mode. Fixed 5 m length. Passive only — not an AOC and contains no active components. Not compatible with EDR (100 Gb/s) ports for full-rate operation; will train down to FDR. Not compatible with QSFP28 ports requiring 25 Gb/s per-lane signaling. Not compatible with SFP+ ports without a breakout (the cable is QSFP-to-QSFP only).
Why Choose T.E.S IT-SOLUTIONS
Each refurbished unit is link-tested at FDR before shipment. T.E.S IT-SOLUTIONS handles orders within 1–3 days and provides expert consultation on Mellanox VPI fabric cabling and protocol mode selection.
Frequently Asked Questions
What protocols does the MC2207126-005 have?
The MC2207126-005 protocols is InfiniBand FDR, Ethernet up to 56GbE (VPI), as listed in the specifications for MC2207126-005.
What is the MC2207126-005 NOT compatible with?
it is not a transceiver pair with a removable patch cord. Confirm fitment against your platform before ordering MC2207126-005.
What condition is the MC2207126-005 supplied in, and who sells it?
The MC2207126-005 is supplied in Refurbished condition by T.E.S IT-SOLUTIONS from EU stock, with 1-3 business day handling and worldwide B2B shipping. See https://www.tes-itsolutions.com/product-page/lot-of-4-mellanox-mc2207126-005-5m-cable-qsfp-ib-fdr-eth-56-gb-s-vpi-support.