HPE 872725-B21 

InfiniBand EDR 100 Gb 1‑Port 841QSFP28 Network Adapter

The HPE 872725‑B21 is a high-performance single-port InfiniBand EDR (100 Gb/s) Network Adapter featuring a QSFP28 interface based on Mellanox ConnectX‑5 technology. Designed for high‑performance computing, storage clusters, and data center fabrics, this adapter delivers ultra-low latency and high throughput over InfiniBand and compatible 100 Gb Ethernet fabrics. With a standard PCIe Gen3 ×16 host interface and compact stand‑up form factor, it fits a range of HPE ProLiant Gen9/Gen10 servers, enabling accelerated workloads, fast inter-node communication, and efficient deployment in dense compute environments.

Features

Leveraging the Mellanox ConnectX‑5 chipset, this adapter supports the IBTA 1.3 InfiniBand standard and 100 Gb Ethernet, providing flexible deployment across both storage and compute fabrics. It offers advanced offload features including RDMA, GPUDirect, and MPI tag matching/rendezvous offloads—minimizing CPU usage and maximizing throughput. Certified for use with EDR and FDR InfiniBand switches, it ensures seamless integration in HPC clusters and storage networks. Its low-profile PCIe Gen3 ×16 interface allows deployment in dense rack configurations and tall or short bracket options provide installation flexibility.

Advanced Options

Built to meet the demands of continuous high-throughput computing environments, the 872725‑B21 adapter delivers consistent 100 Gb/s performance with sub‑microsecond latency—ideal for HPC, large‑scale simulation, and storage fabrics. Its hardware offloads reduce CPU utilization,