HP 655639-B21 10Gb Gigabit Ethernet Ethernet 2-Port 560flb Adapter

HP 10Gb Gigabit Ethernet 2-Port Adapter (Model 655639-B21)

This high-performance adapter brings lightning fast 10 gigabit connectivity to your server or workstation. Designed for demanding workloads, it delivers reliable bandwidth and low latency in a compact form factor that fits easily into standard PCIe slots.

• Dual 10GbE Ports - Two independent 10 gigabit lanes provide redundancy, load balancing, or separate network segments without additional cabling.
• PCI Express 3.0 x8 Interface - Full bandwidth for data-intensive applications such as virtualization, high-performance computing, and large database replication.
• 10GBASE-T Support - RJ45 copper connectivity up to 100 meters with auto-negotiation and full duplex operation.
• 10GBASE-SR / SR4 SFP+ Slots - Flexible fiber options for high-speed interconnects over short or long distances, ideal for data center fabric upgrades.
• Low Power Consumption - Efficient design reduces heat and energy usage in dense server environments.
• Hot-Plug Compatible - Replace or add the adapter without powering down the system, minimizing downtime.

Technical Specifications

• PCIe Generation: 3.0
• Lane Count: x8
• Power Requirements: 2.5V @ 1A (internal power supplied by PCIe slot)
• Dimensions: 4.75 inches long, 2.25 inches wide, 1.50 inches high
• Operating Temperature: -40°C to 85°C
• Supported Operating Systems: Windows Server 2016/2019, Linux (Kernel 3.10+), VMware ESXi 6.x and later

Applications

• Enterprise servers needing high-throughput storage or network I/O
• Virtualization hosts requiring multiple high-speed NICs for VM traffic isolation
• High-performance computing clusters that benefit from fast inter-node communication
• Data center fabric upgrades where 10GbE is the backbone for server-to-switch links
• Backup and disaster recovery setups that demand rapid data transfer between sites

This HP adapter combines robust performance with versatile connectivity options, making it a smart choice for any environment that demands speed, reliability, and flexibility.