The HP Ethernet 1 Gb 4-Port 331T Adapter features the next generation of Ethernet integration, offering a single chip solution that reduces power requirements & optimizes I/O slot utilization. It delivers full line-rate performance across all ports with low power consumption. The HP 331T 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 331T supports advanced features such as Large Send & Receive offload capability, TCP checksum & segmentation, VLAN tagging, MSI-X, jumbo frames, IEEE 1588, & 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. The HP 331T is designed for maximum throughput & high port density. An aggregate, full duplex transfer rate of 8 Gbps per adapter delivers outstanding network performance that improves response time & removes bottlenecks. Comprehensive stateless offloads optimize host efficiency & VM density by leaving host CPU available for other duties. Virtualization support for VMware Net Queue & Microsoft VMQ help meet the performance demands of consolidated virtual workloads. Support for MSI/MSI-X provides performance benefits for multi-core servers by load balancing interrupts between CPUs/cores. Support for Energy Efficient Ethernet (EEE) reduces operating expenses.