Detailed Specifications
HPE P08440-B21 Ethernet 10Gb 2-Port 537FLR-SFP+ Adapter
Overview
The HPE P08440-B21 is a dual-port 10-Gigabit Ethernet adapter designed for HPE ProLiant Gen10 servers. It utilizes two SFP+ ports with full line-rate 10 Gb/s performance per port and installs in a FlexibleLOM/FLR mezzanine slot, preserving standard PCIe slots for other uses. Tailored for virtualized, storage or compute-dense workloads, this adapter supports advanced offloads such as SR-IOV, VXLAN/NVGRE tunnel offload and DPDK to minimize CPU utilization and maximize network throughput. It is suitable for data-centre servers where dual 10G uplinks and optical connectivity are required.
Key Features
Two 10 Gb/s SFP+ ports for fibre or DAC connectivity
FLR mezzanine form-factor compatible with HPE Gen10 servers
Supports SR-IOV, tunnel offload (VXLAN/NVGRE), DPDK
Low power consumption (~<14 W) and optimized for high-density network I/O
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | P08440-B21 |
| Product Type | Ethernet 10Gb 2-Port 537FLR-SFP+ Adapter |
| Port Count | 2 |
| Supported Link Speed | 10 Gb/s per port |
| Port Type | SFP+ (optical fibre or DAC) |
| Host Interface | PCI Express 3.0 ×8 (via FLR slot) |
| Form Factor | FlexibleLOM / FLR mezzanine |
| Typical Power Consumption | ~9.08 W typical / up to ~14 W maximum |
| Dimensions (H×W×D) | ~2.43″ × ~8.44″ × ~9.72″ |
| Weight | ~0.553 lb (~0.25 kg) |
| Advanced Features | Tunnel offload (VXLAN/NVGRE), SR-IOV, DPDK |
| Cable/Medium Support | 10GBase-X compliant SFP+ optics or DAC |
