NVIDIA Mellanox MC2206126-006 QSFP+ 40Gb/s VPI Passive Copper Cable, 6m — Lot of 5 (Refurbished): This listing is a lot of five (5) passive copper Direct Attach Cables (DACs) with QSFP+ connectors on both ends, each 6 meters in length. The MC2206126-006 is a 1:1 point-to-point QSFP+ to QSFP+ interconnect engineered for InfiniBand QDR and 10/40 Gigabit Ethernet links. This is not an Active Optical Cable (AOC), not a transceiver, and not a 4xSFP+ breakout cable. Condition: refurbished, visually inspected, and tested for continuity and link integrity.
Engineering Context: The MC2206126-006 belongs to Mellanox's MC22 passive copper family, classified as a Virtual Protocol Interconnect (VPI) cable — the same physical cable carries either InfiniBand or Ethernet traffic, determined by the endpoint port configuration. Sustained aggregate link rate is 40 Gb/s (4 lanes × 10 Gb/s NRZ), corresponding to InfiniBand QDR or 40 Gigabit Ethernet. Because it is fully passive, the cable draws 0 W from the host port and contains no on-cable signal conditioning, retimers, or optics.
Deployment & Use Cases: Typical applications include rack-internal HPC fabric links between Mellanox InfiniScale IV (IS5000-series) QDR switches and ConnectX-2 / ConnectX-3 VPI HCAs; storage-cluster interconnects between QSFP+-equipped JBOFs and QDR/40GbE servers; and short-reach top-of-rack to compute-node Ethernet uplinks where fiber or AOCs are unnecessary. The 6-meter length suits in-rack runs and short rack-to-rack hops.
Technical Specifications:
Manufacturer Part Number: MC2206126-006
OEM: NVIDIA Mellanox
Form Factor: QSFP+ to QSFP+ (4-channel)
Cable Type: Passive Copper Direct Attach Cable (DAC)
Length: 6 meters
Maximum Data Rate: 40 Gb/s aggregate (4 × 10 Gb/s NRZ)
Protocol Support: InfiniBand QDR (40 Gb/s), 10/40 Gigabit Ethernet (VPI)
Power Draw: 0 W (fully passive)
Condition: Refurbished, tested
Lot Quantity: 5 cables per listing
Compatibility & Constraints: Designed to interoperate with Mellanox QSFP+ host channel adapters and switches that accept passive QDR / 40GbE DACs (ConnectX-2 / ConnectX-3 VPI, IS5000-series, SwitchX). It will not negotiate FDR (56 Gb/s) or EDR (100 Gb/s) rates — those require FDR/EDR-rated copper or AOCs. It is not an active cable and contains no electronics, so it cannot break out to four discrete SFP+ ports. Verify the host platform's QSFP+ vendor-compatibility policy before deployment.
Why TES: T.E.S IT-SOLUTIONS sources, tests, and resells refurbished NVIDIA Mellanox enterprise networking hardware for B2B buyers. Each unit ships from EU stock with 1–3 business day handling. View this product on tes-itsolutions.com.
Frequently Asked Questions
What is the MC2206126-006 NOT compatible with?
This is not an Active Optical Cable (AOC), not a transceiver, and not a 4xSFP+ breakout cable. Confirm fitment against your platform before ordering MC2206126-006.
What condition is the MC2206126-006 supplied in, and who sells it?
The MC2206126-006 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/copy-of-mellanox-mc2206125-008-passive-copper-cable-ib-qdr-40gb-s-qsfp-8m-new.
Are there deployment constraints on the MC2206126-006?
It is not an active cable and contains no electronics, so it cannot break out to four discrete SFP+ ports. This applies to MC2206126-006 specifically.