Detailed Specifications
HPE 879666-001 661SFP28 Dual-Port 10/25 GbE Adapter
Overview
The HPE 879666-001 is a server-class network interface adapter designed for deployment in data-centre and enterprise server environments where high-speed Ethernet connectivity is required. It provides two SFP28 ports capable of 10 Gbps or 25 Gbps operation, enabling uplink or server-access links in racks supporting top-of-rack or spine-leaf fabrics. The adapter plugs into a PCI Express slot in compatible HPE ProLiant servers and uses the system's existing power and cooling architecture. Ideal for applications such as virtualised server clusters, high-performance compute nodes or storage-front-end servers, the 661SFP28 adapter helps network engineers upgrade to 25 GbE infrastructure without replacing the host server. It fits into standard rack servers and integrates with HPE server management and driver ecosystems for unified lifecycle operations.
Key Features
Two SFP28 ports supporting 10 Gbps or 25 Gbps speeds
PCI Express interface for HPE ProLiant servers
Compatible with HPE 661SFP28 adapter family
Enables upgrade to 25 GbE cabling infrastructure
Dual-port NIC for redundancy or high-bandwidth link aggregation
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | 879666-001 |
| Product Type | Dual-Port 10/25 GbE SFP28 Network Adapter |
| Interface Standard | PCI Express (PCIe) |
| Port Type | 2 × SFP28 (optical or direct-attach) |
| Supported Speeds | 10 Gbps, 25 Gbps |
| Compatible Server Models | HPE ProLiant series (through adapter family) |
| Form Factor | Full-height (with optional low-profile bracket) |
| Supported Protocols | Ethernet (10G/25G) |
| Use Case | Server access, uplink links, aggregation |
| Link Aggregation Support | Yes |
| Operating Environment | Data-centre standard |
| Driver/OS Support | HPE ProLiant server OS ecosystem |
| Typical Power Draw | Not publicly specified |
| Weight | Not publicly specified |
| Warranty | Standard HPE parts warranty |
