Description
HP InfiniBand FDR / Ethernet 10/40Gb Dual Port 544M Adapter – 644161-B22
HP InfiniBand FDR/EN 10/40Gb The HP InfiniBand FDR / Ethernet 10/40Gb Dual Port 544M Adapter (644161-B22) is a high-performance converged network card interface card designed to deliver both InfiniBand FDR and 10/40Gb Ethernet connectivity from a single adapter. Developed and validated by Hewlett‑Packard Enterprise, this adapter is ideal for data centers and enterprise environments that demand high-bandwidth, low-latency networking for compute, storage, and virtualization workloads.
Dual-Mode Networking: InfiniBand FDR and 10/40Gb Ethernet
This adapter supports InfiniBand FDR (Fourteen Data Rate) for ultra-low latency and 10Gb / 40Gb Ethernet for flexible, high-speed network connectivity. The dual-port design allows each port to operate in either mode based on your network configuration and driver setup.
High-Throughput, Low-Latency Performance
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InfiniBand FDR: Provides up to 56 Gb/s of bidirectional traffic with extremely low latency, making it suitable for high-performance computing (HPC), parallel computing clusters, and storage interconnects.
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10/40Gb Ethernet: Delivers scalable bandwidth for general-purpose network traffic, server clustering, and network-intensive applications.
Broad Compatibility and Easy Integration
The adapter uses a standard PCIe interface, enabling straightforward installation in compatible HPE server platforms. It supports a range of operating systems and integrates with existing InfiniBand and Ethernet infrastructures.
Enterprise-Grade Reliability
As a genuine HPE component, the 644161-B22 adapter is tested for continuous operation in demanding environments. It delivers predictable performance and stability under heavy workloads, making it suitable for enterprise data centers and research facilities.
Key Features
HP InfiniBand FDR/EN 10/40Gb
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Dual-port adapter supporting InfiniBand FDR and 10/40Gb Ethernet
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Ultra-low latency connectivity for HPC and storage clusters
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High-throughput performance for general network traffic
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Standard PCIe form factor with broad server compatibility
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Genuine HPE enterprise network adapter
Common Use Cases
This adapter is ideal for high-performance computing clusters, virtualization hosts, storage area networks, database servers, private and hybrid cloud environments, and data centers requiring scalable, flexible networking solutions.
Frequently Asked Questions (FAQ)
What is the difference between InfiniBand FDR and Ethernet mode?
InfiniBand FDR offers ultra-low latency and high bandwidth (up to 56 Gb/s) optimized for HPC and storage interconnects, while 10/40Gb Ethernet provides flexible, widely compatible network connectivity for general traffic.
Can both ports operate in different modes simultaneously?
Yes. The dual-port design allows each port to function in the mode you configure—InfiniBand FDR or 10/40Gb Ethernet—depending on your network setup and driver support.
What cabling is required for InfiniBand FDR?
InfiniBand FDR typically uses InfiniBand-rated QSFP cables or transceivers compatible with the server and switch hardware in your environment.
Is this adapter compatible with all servers?
This adapter requires a compatible PCIe slot and appropriate driver support. It is designed primarily for HPE ProLiant and similar server platforms that support converged networking adapters.
Does this adapter support virtualization environments?
Yes. It is well suited for virtualized infrastructures where high throughput and low latency are important—for example, hypervisor clustering, VM migration, and shared storage access.





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