The HP Ethernet 1 Gb 4-port 331FLR Adapter for select HP Pro Liant Gen 8 & Gen 9 rack servers features the next generation of Ethernet integration, offering a single-chip solution in a Flexible LOM form factor, which offers the option for future upgrades to 10 Gb E networking speeds. It delivers full line-rate performance across all ports with low power consumption. The HP 331FLR is ideal for virtualization, security, server consolidation, network segmentation, & other applications requiring maximum throughput & port density. The total aggregate throughput of 4 Gb meets the needs of customers desiring high bandwidth. The HP 331FLR supports advanced features such as Large Send & Receive offload capability, TCP checksum & segmentation, VLAN tagging, MSI-X, jumbo frames, IEEE 1588, HP Sea of Sensors 3D & virtualization features such as VMware Net Queue & Microsoft VMQ. Support for HP Sea of Sensors 3D Technology enhances server performance while reducing energy use & expense.