HP 670760-B23 56Gb/s FDR InfiniBand QSFP Active Optical Cable, 7m: This is a 7-meter HP-branded active optical cable (AOC) for FDR InfiniBand fabrics at 56Gb/s. The cable is an integrated fiber assembly with QSFP+ connectors on both ends. This is a fixed-length AOC, not a transceiver pair with patch cords. This is a refurbished unit tested by T.E.S IT-SOLUTIONS.
Engineering Context
The 670760-B23 is the HP HPC option-kit cable typically shipped with HP ProLiant compute nodes and HP-rebadged Mellanox SwitchX FDR switches. At 7 meters it spans cross-rack and short cross-row InfiniBand runs that exceed practical passive copper reach. Active optical interconnect provides EMI immunity and full 56Gb/s line-rate signalling without copper-cable bend-radius and weight constraints. The cable terminates with QSFP+ form-factor connectors on both ends.
Deployment & Use Cases
FDR InfiniBand cluster fabrics in HP ProLiant SL/DL HPC deployments. Cross-rack uplinks between FDR Top-of-Rack switches and aggregation. Replacement and spare for existing 670760-B23 cabling in production HP InfiniBand environments. MPI workloads and parallel storage fabrics over InfiniBand.
Technical Specifications
OEM Part Number: HP 670760-B23
Underlying Technology: Mellanox FDR AOC
Form Factor: QSFP+ to QSFP+ (Point-to-Point)
Data Rate: 56Gb/s FDR (4x 14Gb/s lanes)
Cable Type: Active Optical Cable (AOC)
Length: 7m
Protocol: InfiniBand FDR
Conductor: Multi-mode fiber with VCSEL optics
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Designed for HP ProLiant servers with Mellanox ConnectX-3 FDR HCAs (HP option kits) and HP-branded Mellanox SwitchX FDR switches. Compatible with native Mellanox FDR ports running in InfiniBand mode. Not a 100GbE EDR or HDR cable; will not negotiate above FDR 56Gb/s. QSFP+ form factor is not directly compatible with QSFP28 or QSFP56 ports without verifying backward-compatibility on the target switch. Fixed 7m length, no breakout.
Why TES
T.E.S IT-SOLUTIONS tests every AOC for optical link integrity, lane health, and connector condition before shipment. We provide expert consultation on HP and Mellanox InfiniBand fabric design, global shipping, and a 1–3 day handling time. Visit tes-itsolutions.com for the full catalog.