The HP Ethernet 1Gb 4-port 331FLR Adapter for select HP ProLiant Gen8 and Gen9 rack servers features the next generation of Ethernet integration offering a single-chip solution in a FlexibleLOM form factor which offers the option for future upgrades to 10GbE 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 and other applications requiring maximum throughput and port density. The total aggregate throughput of 4Gb meets the needs of customers desiring high bandwidth.The HP 331FLR supports advanced features such as Large Send and Receive offload capability TCP checksum and segmentation VLAN tagging MSI-X jumbo frames IEEE 1588 HP Sea of Sensors 3D and virtualization features such as VMware NetQueue and Microsoft VMQ.Support for HP Sea of Sensors 3D Technology enhances server performance while reducing energy use and expense.