NVIDIA Mellanox MC2207312-050 QSFP+ Active Optical Cable, 56Gb/s FDR VPI, 50m: This is a 50-meter active optical cable (AOC) in QSFP+ form factor for VPI operation, supporting 56Gb/s FDR InfiniBand and 56GbE Ethernet (4x14Gb/s NRZ). The cable uses 850nm VCSEL optics over multi-mode fiber. This is a fixed-length integrated assembly with permanently attached transceivers, not a transceiver pair with a separate patch cord. This is a refurbished unit.
Engineering Context
The MC2207312-050 uses 4x14.0625Gb/s NRZ signaling to deliver the 56Gb/s FDR rate. At 50 meters, the AOC is positioned for cross-row HPC fabric extension where passive copper twinax falls short. VPI (Virtual Protocol Interconnect) enables the same physical cable to operate as InfiniBand FDR or 56GbE Ethernet based on host port configuration. The cable provides complete EMI immunity and electrical isolation between endpoints.
Deployment & Use Cases
Cross-row 56Gb/s FDR InfiniBand fabric extension in HPC clusters. End-of-row 56GbE Ethernet aggregation in research computing and academic data centers. Long-reach storage interconnects between Lustre or GPFS storage nodes. ConnectX-3 / ConnectX-3 Pro adapter to SwitchX-2 / SX6000 switch interconnects across rooms.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MC2207312-050
Form Factor: QSFP+ to QSFP+ (Point-to-Point)
Data Rate: 56Gb/s FDR / 56GbE (4x14G NRZ)
Cable Type: Active Optical Cable (AOC)
Length: 50m
Fiber: Multi-Mode, integrated
Wavelength: 850nm VCSEL
Protocols: InfiniBand FDR (VPI), 56GbE Ethernet
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with Mellanox SwitchX-2 / SX6000 series VPI switches and ConnectX-3 / ConnectX-3 Pro QSFP+ adapters in FDR mode. Compatible with 40/56GbE Ethernet ports on the same switch families. Not compatible with EDR (100Gb/s) signaling — FDR (56Gb/s) only. Not compatible with QSFP28 ports as a 100Gb/s link. This is a direct QSFP+ to QSFP+ cable; does not support breakout. Fixed 50m length.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every AOC for optical power output, lane integrity, and connector condition before shipment. We provide expert consultation on legacy FDR fabric expansion, global shipping, and comprehensive warranty. Visit tes-itsolutions.com for the full FDR catalog. Standard handling time is 1–3 business days.