Detailed Specifications
HPE P08442-B21 10/25 GbE 2-Port SFP28 Adapter
Overview
The HPE P08442-B21 is a high-performance server network adapter designed for modern data-centre and compute-intensive environments. It provides two SFP28 ports capable of 10 Gb/s or 25 Gb/s link speeds each, enabling flexible uplink bandwidth and future-proof connectivity over fibre or DAC cabling. Installed in compatible HPE servers, it enables full line-rate dual-port performance, supports large virtualised workloads, high-throughput storage traffic and converged I/O architectures. Using the SFP28 form-factor and a mezzanine or PCIe slot interface, the adapter integrates seamlessly with server boards while freeing expansion slots. It is appropriate for hyper-scale compute nodes, high-density racks or storage-accelerated servers requiring dual high-speed uplinks and advanced offload functionality.
Key Features
2 × SFP28 ports supporting 10 Gb/s and 25 Gb/s link speeds
Dual-port full line-rate performance for dual network uplinks
Flexible uplink bandwidth for current and future infrastructure
SFP28 form-factor adapter designed for server installation
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | P08442-B21 |
| Product Type | 10/25 GbE 2-Port SFP28 Adapter |
| Port Count | 2 |
| Supported Link Speeds | 10 Gb/s, 25 Gb/s per port |
| Port Type | SFP28 |
| Host Interface | SFP28 mezzanine/PCIe adapter slot |
| Form Factor | Adapter card |
| Dimensions (W × D × H) | Approx. 3.0″ × 6.7″ × 0.7″ |
| Weight | Approx. 0.25 lb (~0.11 kg) |
| Supported Cabling/Media | Fibre or DAC via SFP28 |
| Typical Use Case | Server uplinks, virtualised compute nodes |
| Virtualisation/Offload Ready | Yes |
| Future-proof Architecture | 10 Gb now, 25 Gb upgrade path |
| Compatible Platforms | HPE servers certified for the adapter |
