Features: 1PCI Express X4: This PCIe network card adopts PCI Express X4 Gen 2.0 5.0GT/s. Expandable iSCSI performance to provide economical SAN connection. 21000Mbps Transmission: This Gigabit server card adopts I350 T4 master controller, providing 10/100/1000Mbps high speed transmission. 3Supported System: This Gigabit copper server NIC is suitable for FreeBSD, for Linux , for VMWare ESXi, for Win 7, for Server 2012, for Server 2008, for Win 8, for Win 8.1, for Server 2016, for Win 10. 4Power Management: This PCIe network adapter supports power management function, including integration of EEE and DMA, reducing power consumption. 5Flexible I/O Virtualization: This Ethernet network card provides flexible I/O virtualization for port partitioning and quality of service (QoS) of more than 32 virtual ports. Package included: 1 x PCIe Network Card 1 x Half Height Bracket 1 x CD 1 x User Manual