NVIDIA Mellanox MC2206125-007 InfiniBand QDR 40Gb/s Passive Copper QSFP Cable, 7m — Lot of 5, NEW: This is a fixed-length passive copper twin-axial cable assembly with QSFP (SFF-8436) connectors on both ends, designed for 40 Gb/s QDR InfiniBand interconnects. The cable is passive — it carries no transceiver electronics and draws no power from the host port. This is a lot of 5 (five) cables in NEW condition.
Engineering Context
The MC2206125-007 is a 7-meter QDR InfiniBand cable engineered for in-rack and adjacent-rack copper interconnects. Passive copper at 7m sits at the practical reach limit for QDR; signal integrity at this length depends on the host port equalizer. The cable uses SFF-8436 QSFP connectors on both ends and is intended for 40 Gb/s QDR (4x10Gb/s NRZ) InfiniBand fabric ports. As a passive assembly, it consumes zero port power and adds zero latency from optics conversion.
Deployment & Use Cases
Top-of-Rack to spine InfiniBand fabric links in HPC clusters running QDR. Adjacent-rack interconnects between Mellanox QDR switches and ConnectX-2 / ConnectX-3 host channel adapters. Bench and lab fabric setups where multiple identical cables are needed at once — this lot of 5 is suited to populating a half-rack of compute nodes in one purchase. Cost-sensitive copper alternative to AOCs at the same 7m reach.
Technical Specifications
OEM: NVIDIA Mellanox (Mellanox Technologies)
Part Number: MC2206125-007
Cable Type: Passive Copper Twin-Axial
Connectors: QSFP (SFF-8436) to QSFP (SFF-8436)
Data Rate: 40 Gb/s (QDR, 4x10Gb/s NRZ)
Protocol: InfiniBand QDR
Length: 7 m
Power Draw: 0 W (passive)
Quantity: 5 cables (Lot of 5)
Condition: NEW (factory-sealed where applicable)
Compatibility & Hard Constraints
Compatible with Mellanox QDR InfiniBand switches and ConnectX-2 / ConnectX-3 QSFP host channel adapters running InfiniBand QDR. This is a passive copper cable, not an active optical cable (AOC) and not a transceiver — do not confuse with MFA-series AOCs. At 7m, this cable sits at the practical edge of passive copper reach for QDR; longer runs require AOCs or fiber with separate transceivers. FDR (56 Gb/s) and EDR (100 Gb/s) operation is not supported by this cable revision — those rates require FDR/EDR-rated assemblies. Length is fixed at 7m and not field-shortenable.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS sources factory-new MC2206125-007 cables and ships them in original packaging where available. Visit tes-itsolutions.com for our full Mellanox InfiniBand cable inventory. Handling time 1–3 business days with global shipping and warranty.