HPE 879482-B21 547FLR-QSFP Dual-Port InfiniBand FDR / Ethernet 40/50Gb FlexibleLOM Adapter: This is the HPE 547FLR-QSFP FlexibleLOM adapter for ProLiant Gen9 and Gen10 servers, providing two QSFP+ ports that support InfiniBand FDR (56Gb/s per port) or Ethernet at 10, 40, or 50Gb. The card uses the Mellanox ConnectX-3 Pro ASIC and runs HPE-branded firmware. This is not a standard PCIe adapter; it uses HPE's FlexibleLOM (FLR) form factor. This is a new unit.
Engineering Context
The 547FLR-QSFP delivers up to 112Gb/s aggregate bidirectional bandwidth across two QSFP+ ports. It supports RDMA over both InfiniBand (native verbs) and RoCE on Ethernet, plus hardware offloads for VXLAN, NVGRE, GENEVE, and stateless TCP. Using the FlexibleLOM slot frees standard PCIe slots for other adapters. Host interface is PCIe 3.0 x8. Typical power draw is approximately 14W under load.
Deployment & Use Cases
HPC clusters running MPI workloads on ProLiant Gen9 / Gen10 servers. SMB Direct and NFS-RDMA storage networks. RDMA-accelerated VM migration with Hyper-V Live Migration over RoCE. Connecting ProLiant servers to FDR InfiniBand fabrics for Lustre and GPFS.
Technical Specifications
OEM: HPE (Mellanox ConnectX-3 Pro silicon)
Part Number: 879482-B21
Form Factor: FlexibleLOM (FLR)
Ports: 2 x QSFP+
InfiniBand Rate: FDR (56Gb/s per port)
Ethernet Rate: 10GbE / 40GbE / 50GbE per port
Host Interface: PCIe 3.0 x8
Offloads: RDMA (IB verbs, RoCE v1/v2), VXLAN, NVGRE, GENEVE, stateless TCP
Aggregate Bandwidth: ~112Gb/s
Typical Power: ~14W
Condition: New — Factory sealed, supplied by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with HPE ProLiant Gen9 and Gen10 servers that have a FlexibleLOM (FLR) slot. Not compatible with Gen8 servers, third-party servers, or standard PCIe slots. Will not seat in OCP 2.0 or OCP 3.0 mezzanine slots. The 547FLR-QSFP runs HPE-branded firmware; cross-flashing to generic Mellanox firmware is not supported by HPE. Requires QSFP+ cables or transceivers; QSFP28 100GbE cables are not supported.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS verifies port operation, firmware revision, and physical condition before shipment. Visit tes-itsolutions.com for our full HPE networking inventory. Handling time is 1 to 3 business days from order confirmation.