HP-branded InfiniBand FDR active optical cable (AOC) — the HP 670760-B22 is a QSFP-to-QSFP active optical cable operating at InfiniBand FDR (56Gb/s) at 5-meter reach. MPN: 670760-B22. This product IS an active optical cable for IB FDR applications at 5m; it is NOT a passive copper cable (despite FDR passive copper being viable at 5m, this is the optical variant), NOT compatible with EDR (100Gb/s) or QSFP28 ports, and NOT a 40GbE Ethernet cable. OEM: HP (HPE). Condition: refurbished.
Engineering Context
The 670760-B22 transmits at 14.0625 Gb/s per lane across 4 lanes for an aggregate of 56Gb/s (InfiniBand FDR). Active optical modules at both QSFP connector ends perform electrical-to-optical conversion, providing immunity from EMI and enabling flexible routing compared to copper DAC alternatives at the same length. The multimode optical fiber is sealed inside the cable jacket with no field-serviceable fiber components. Per-module power consumption is approximately 1.0W, with total cable power approximately 2.0W across both ends. The 5m active optical variant provides an alternative to passive copper DAC (670759-B2x series) for environments where optical routing or EMI immunity is preferred at in-rack distances.
Deployment & Use Cases
Deployed in InfiniBand FDR HPC clusters connecting compute nodes to FDR leaf switches within or across racks where optical routing is preferred over copper. Used in HP ProLiant server environments with FDR IB HCAs for MPI-based HPC workloads requiring EMI-resilient cabling. Suitable for Lustre and GPFS parallel storage networks using FDR IB transport at 5m intra- or inter-rack distances. Appropriate for VMware ESXi clusters using IB FDR for RDMA-based shared storage where cable routing constraints favor optical. The 5m length bridges in-rack and immediately adjacent-rack connections.
Technical Specifications
MPN: 670760-B22
OEM: HP (HPE)
Cable Type: Active Optical Cable (AOC)
InfiniBand Speed: 56Gb/s (FDR)
Lane Rate: 14.0625 Gb/s per lane (4 lanes)
Connectors: QSFP (both ends — not QSFP28)
Cable Length: 5 meters
Fiber Type: Multimode (internal, sealed)
Per-Module Power: ~1.0W (~2.0W total)
Active Components: Yes (optical modules at each end)
Condition: Refurbished
Compatibility & Constraints
Compatible with QSFP FDR InfiniBand ports on HP ProLiant servers with FDR HCAs, and with standard NVIDIA Mellanox FDR InfiniBand switches (SX6036, SX6012, SX6025). Compatible with ConnectX-3 and ConnectX-3 Pro HCAs with QSFP FDR ports. The 670760-B22 uses QSFP connectors and is NOT compatible with QSFP28 (EDR/HDR/100GbE) ports. NOT compatible with EDR (100Gb/s) IB switches. NOT compatible with QSFP+ 40GbE Ethernet ports. This is the 5m optical variant; the HP passive copper FDR series at shorter lengths is the 670759-Bxx family. For longer FDR optical reach, select longer HP FDR AOC variants or NVIDIA Mellanox MFA1A00 series.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests all AOC cables for optical signal integrity and IB FDR link-up prior to dispatch. Lab-verified stock, 1–3 business day handling, global shipping. Technical consultation available for IB FDR fabric cable planning. Visit tes-itsolutions.com.