HPE P31324-B21

InfiniBand HDR / Ethernet 200 Gb 2‑Port QSFP56 Network Adapter

The HPE P31324‑B21 is a high-performance dual‑port QSFP56 Network Adapter delivering up to 200 Gb/s per port (400 Gbpsaggregate) over InfiniBand HDR or Ethernet (200 GbE). Based on the Mellanox ConnectX‑6 HDAT chipset and leveraging a PCIe 4.0 ×16 interface, it is designed for latency-sensitive and bandwidth-intensive applications such as HPC workloads, AI/ML clusters, and storage fabrics. This low-profile plug-in card is certified for HPE ProLiant Gen10 Plus and Apollo systems, offering future-proof connectivity and full fabric convergence for demanding data center environments.

Features

Built on Mellanox ConnectX‑6 HDAT (HDR-class) architecture, the P31324‑B21 supports InfiniBand HDR (≈200 Gb/s) and 200 Gb Ethernet via QSFP56 interfaces. Its PCIe Gen4 ×16 host interface ensures full utilization of line-rate speed with minimal CPU overhead. Advanced features include RDMA, GPUDirect, MPI offloads, SR‑IOV, and VXLAN/NVGRE tunneling for ultra-efficient data movement. The adapter supports both OCP 3.0 and stand‑up low-profile form factors and is compatible with DAC and AOC cabling. Integrated Digital Optical Monitoring (DOM) delivers real-time diagnostics including voltage, temperature, and optical power metrics.

Advanced Options

DOM monitoring facilitates proactive issue detection, while the low-power passive design supports deployment in dense server environments. With HPE support and compatibility with ProLiant Gen10+ and Apollo platforms, this adapter offers enterprise-level reliability, simplified server integration, and long-term deployment flexibility.