HPE 843400-B21

InfiniBand EDR 100 Gbps 2‑Port Gigabit Ethernet Adapter– Refurbished

The HPE 843400‑B21 (840z 2‑port Mezzanine FIO adapter) is a refurbished InfiniBand EDR network card engineered for high-performance computing and ultra-low latency interconnects. Based on Mellanox ConnectX‑4 technology, it delivers 100 Gb/s per port throughput over InfiniBand EDR links. Suitable for HPC clusters, HPC‑optimized storage, and advanced compute applications, it integrates into HPE Apollo and ProLiant XL server compute trays. This adapter optimizes data fabric performance and supports enterprise-grade InfiniBand features, enabling scalable throughput and efficient communication for demanding workloads.

Features

Designed for HPC environments, the adapter installs as a mezzanine card in HPE Apollo and ProLiant XL compute blades, bypassing conventional PCIe lanes for direct high‑speed interconnect access . It leverages Mellanox ConnectX‑4 silicon to support InfiniBand EDR at 100 Gb/s per port, minimizing latency while maximizing bandwidth. Features like Extended Reliable Connected (XRC), Dynamically Connected Transport (DCT), user-mode registration (UMR), and on-demand paging (ODP) enable scalable memory sharing and efficient communication between nodes

Advanced Options

Engineered for mission-critical and cluster-grade performance, this adapter ensures dependable, low-latency inter-node messaging. Compliance with IBTA 1.3 and support for enterprise software tunnels like XRC and DCT facilitates robust data transfer under HPC workloads