# Network adapter HP Enterprise 40Gb IB FDR/EN 2-port (model 764285-B21-RFB)

**URL:** https://aio.lv/en/product--hp-enterprise-764285-b21-rfb--3208323
**Data updated:** 2026-02-19 13:16 (EET)
**Category:** Network Cards
**Manufacturer:** HP Enterprise
**Manufacturer code:** 764285-B21-RFB
**EAN:** 5706998860163
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

This HP Enterprise 40Gb InfiniBand FDR/EN network adapter (2-port, model 764285-B21-RFB) provides high-throughput, low-latency connectivity for servers and storage. Designed for data center use, it supports 40Gb links over InfiniBand FDR/EN protocols and dual ports for redundancy or aggregated bandwidth. Suitable for HPC, virtualization, and storage networks where reliable, high-performance interconnects are required.

## Long description

This HP Enterprise 40Gb InfiniBand FDR/EN network adapter (2-port) delivers high-throughput, low-latency connectivity for server and storage environments. Built for data center and high-performance computing deployments, the adapter provides two 40Gb links that can be used for redundancy or link aggregation. It supports InfiniBand FDR/EN protocols to facilitate fast data transfer, efficient remote direct memory access (RDMA) and reduced CPU overhead in virtualization, storage and compute clusters.
Advantages
The dual-port design enables high aggregate bandwidth and path redundancy while maintaining low latency suitable for HPC and storage fabrics. Support for InfiniBand FDR/EN protocols ensures compatibility with RDMA-enabled stacks and minimizes CPU utilization for data-intensive workloads. The adapter is engineered for rack-mounted servers and storage nodes, offering a compact, industry-standard form factor and reliable connectivity for continuous operation in data center conditions.
Suitable for
 High-performance computing clusters and scientific simulation
 Virtualized server environments requiring low-latency network I/O
 High-throughput storage networks and SAN connectivity
 Database servers and analytics platforms with intensive inter-node traffic
 Redundant or aggregated link deployments for improved bandwidth and resilience
Key specifications
 Interface type: InfiniBand FDR/EN
 Data rate: 40 Gigabits per second per port
 Port count: 2 physical ports for redundancy or aggregation
 Latency: low-latency design suitable for RDMA and HPC workloads
 Form factor: server adapter compatible with standard data center servers
 Primary use: server-to-server and server-to-storage high-speed interconnects
How to use
Install the adapter into a compatible server PCIe slot following the server manufacturer's service manual and ensure the system is powered down during installation. Connect the appropriate InfiniBand-rated cables to the adapter ports and to the corresponding switch or peer node. Install or update firmware and drivers provided by the server or adapter vendor, and configure link aggregation, multipath or RDMA settings as required by your operating system and networking stack. Verify link status and performance through the host management tools and monitor for errors during initial operation.
Usage recommendations
 For optimal performance, use matched InfiniBand FDR/EN components across the fabric, maintain up-to-date firmware and drivers, and follow vendor guidance for cable types and maximum link lengths to preserve signal integrity and low latency. Consider enabling RDMA and tuning kernel/network settings for latency-sensitive workloads.

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### What is the warranty period?

All HP Enterprise products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HP Enterprise service centers and through AiO.lv

### Can the product be returned after purchase?

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