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

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.