Detailed Specifications
HPE 872726-H21,100 Gb/s 2-Port QSFP28 Adapter
Overview
The HPE 872726-H21 is a dual-port server adapter delivering 100 Gb/s Ethernet and 100 Gb/s EDR InfiniBand connectivity via QSFP28 interfaces. Designed for high-performance computing and data-centre servers, it fits a PCI Express Gen3 ×16 slot to provide full-line-rate throughput on both ports. The adapter supports advanced offloads such as SR-IOV with up to 256 virtual functions, VXLAN/NVGRE tunnel offloading, RoCE (RDMA over Converged Ethernet), and jumbo frames up to 9.6 KB. It is ideal for clustered, virtualised, or storage-intensive workloads, enabling dual high-speed uplinks from a single slot. The compact form-factor and validated compatibility with HPE ProLiant and XL servers ensure reliable deployment in dense server environments.
Key Features
Two QSFP28 ports supporting 100 Gb/s Ethernet and InfiniBand EDR
PCI Express Gen3 ×16 host interface for full bandwidth
Advanced offloads: SR-IOV, VXLAN/NVGRE, RoCE, jumbo frames
Dual high-speed uplinks in one server adapter
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | 872726-H21 |
| Product Type | 100 Gb/s 2-Port QSFP28 Server Adapter |
| Port Count | 2 |
| Supported Link Speeds | 100 Gb/s per port |
| Port Type | QSFP28 |
| Host Bus Interface | PCI Express Gen3 ×16 |
| Supported Protocols | 100 Gb Ethernet, 100 Gb InfiniBand EDR |
| Virtualisation Support | SR-IOV, up to 256 Virtual Functions |
| Offload Features | Tunnel offload (VXLAN/NVGRE), RoCE, Jumbo frames up to 9.6 KB |
| Typical Power Consumption | 17.6 W typical, up to 19 W max |
| Operating Temperature Range | 0 °C to 55 °C |
| Form Factor | PCIe plug-in adapter |
| Use Case | High-performance server uplinks, HPC, storage, virtualisation |
| Dimensions (approx.) | 4.4″ × 2.7″ × 0.9″ (112 × 69 × 23 mm) |
| Weight | ~0.66 lb (~0.3 kg) |
