Detailed Specifications
HPE 870823-001 Ethernet 10/25 Gb 2-Port 631FLR-SFP28 Adapter
Overview
The HPE 870823-001 is a dual-port network adapter designed for modern high-throughput server environments. Each port supports both 10 Gb/s and 25 Gb/s link speeds via an SFP28 interface, offering flexible uplink bandwidth to match evolving network infrastructures. The adapter installs in a 631 FLR mezzanine slot on certified server platforms (such as HPE ProLiant models) and uses a PCI Express architecture beneath the mezzanine interface to deliver full throughput. It is suitable for virtualised hosts, storage and compute nodes needing dual high-speed links without consuming multiple expansion slots. Features include support for advanced offloads (such as RDMA over Converged Ethernet), VXLAN/NVGRE tunnelling, jumbo frames up to ~9.2 KB, and full dual-port operation at line rate. As networks transition from 10 Gb to 25 Gb, this adapter provides future-proof connectivity while preserving server slot real-estate and cabling infrastructure flexibility.
Key Features
Two SFP28 ports supporting 10 Gb/s and 25 Gb/s link speeds
631 FLR mezzanine form-factor for server mezzanine slot installation
Full dual-port line-rate performance for server uplinks
Advanced offload capabilities including RDMA/ROCE, VXLAN/NVGRE tunnel support
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | 870823-001 |
| Product Type | Ethernet 10/25 Gb 2-Port SFP28 Adapter |
| Port Count | 2 |
| Supported Link Speeds | 10 Gb/s, 25 Gb/s per port |
| Port Type | SFP28 |
| Host Interface | Mezzanine 631 FLR slot (server internal) |
| Jumbo Frame Support | Up to ~9.2 KB |
| Form Factor | Mezzanine card |
| Dimensions (W × D × H) | Approx. 3.4″ × 6.9″ × 0.6″ |
| Weight | Approx. 0.34 lb (~0.15 kg) |
| Offload Features | RDMA/ROCE, VXLAN/NVGRE tunneling |
| Use Case | Dual uplinks for servers in data-centre |
| Compatible Platforms | Servers supporting 631 FLR mezzanine slot |
| Cable/Media Support | SFP28 optics or DAC for 10/25 Gb |
