HP 724206-B21 Ethernet 10Gb 1-Port 544+FLR-SFP+ Adapter — the 724206-B21 is a single-port 10 Gigabit Ethernet HP FlexibleLOM Rack (FLR) adapter built on Mellanox ConnectX-3 Pro silicon. MPN: 724206-B21. This product IS an HP-branded 10GbE FlexibleLOM mezzanine card with an SFP+ cage; it is NOT a standard PCIe slot card, NOT a 40GbE QSFP variant, NOT a VPI/InfiniBand HBA. OEM: HP. Condition: refurbished.
Engineering Context
The 544+FLR-SFP+ uses the Mellanox ConnectX-3 Pro EN ASIC with one 10 Gb/s SFP+ cage. The host interface connects through HP's FlexibleLOM connector, electrically equivalent to PCIe Gen3 x8 (8 GT/s per lane). Stateless TCP/UDP/IP offloads, large send offload (LSO), receive-side scaling (RSS), VLAN tagging, and Mellanox VXLAN/NVGRE hardware encapsulation are supported. SR-IOV with multiple virtual functions per port enables direct VM-to-NIC passthrough. RoCE v1 and v2 RDMA are supported for low-latency storage and message-passing workloads. Power consumption stays within FLR connector limits because the FLR slot consolidates PCIe and 12 V rails in a single card edge.
Deployment & Use Cases
Drops into the FlexibleLOM slot of HP ProLiant Gen8 and Gen9 rack and tower servers — DL360p Gen8, DL360 Gen9, DL380p Gen8, DL380 Gen9, DL160 Gen9, ML350 Gen9, and DL580 Gen8/Gen9. Common workloads: 10GbE iSCSI and NFS storage front-ends, VMware ESXi vSphere uplinks, Hyper-V converged networking with VXLAN, Linux KVM with SR-IOV passthrough, and RoCE-based RDMA targets feeding small AI/ML and HPC clusters.
Technical Specifications
Brand: HP
MPN: 724206-B21
HP Variant Name: Ethernet 10Gb 1-port 544+FLR-SFP+ Adapter
Chipset: Mellanox ConnectX-3 Pro EN
Ports: 1x SFP+
Data Rate: 10 GbE per port
Host Interface: HP FlexibleLOM (PCIe Gen3 x8 electrical)
Form Factor: FLR (FlexibleLOM Rack)
Offloads: Stateless TCP/UDP/IP, LSO, RSS, VLAN tagging, VXLAN/NVGRE
RDMA: RoCE v1/v2 capable
Virtualization: SR-IOV
Condition: Refurbished
Compatibility & Constraints
Designed for HP ProLiant Gen8 and Gen9 servers with a vacant FlexibleLOM slot. NOT compatible with standard PCIe x8/x16 expansion slots — the FLR connector is HP-proprietary. NOT compatible with HPE ProLiant Gen10, which moved to OCP-based mezzanine adapters (e.g. 661685-001 successor lineage replaced by Gen10 OCP cards). NOT a VPI/InfiniBand card — this SKU is fixed to Ethernet operation. SFP+ optical or DAC cables are sold separately; HP firmware may apply HP/Mellanox transceiver whitelisting on certain BIOS levels.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests all 10GbE FlexibleLOM adapters for link-up, port-level traffic forwarding, and PCIe enumeration in a representative HP ProLiant chassis prior to dispatch. Lab-verified stock, 1–3 business day handling, global shipping. Technical consultation available for HP ProLiant Gen8/Gen9 networking refresh projects. Visit tes-itsolutions.com.