1. PCIe base specifiatication 2.0(2.5GT/S) or (5GT/s). Complies with quad port 1GbE PHY device. MDI(Copper) standrd IEEE802.3 Ethernet interface for 1000BASE-T,100BASE-TX,and10BASE-T application(802.3,802.3u,and 802.)2. PCI Bus Power Management interface Specification Rev1.2. Max 9.6KB of jumbo frames supported. Flow control supports: send/receive PAUSE frames and receive FIFO thresholds3. Statistics for management and RMON. 802.1Q VLAN support. 64-bit address support for systems using more than 4GB of physical memory4. IPv6 wake-up filters. TCP segmentation offload :up to 256KB. IPv6 support for IP/TCP and IP/UDP receive checksum offload. Interrupt throttling control to limit maximum interrupt rate and improve CPU usage. Receive packet split header. support5. Suport for Virtual Machines device queues. Supports OS: Linux,FreeBSD/Server2003/Win7/Win8/Win8.1/Server2012/Server2016/Win10 32/64biKind: InternalType: WiredLan Transmission Rate: 1000M EthernetApplication: ServerAdapter Socket: RJ45Interface Type: PCI ExpressApplicable Network Type: Gigabit EthernetChipset: Intel82576Interface: PCIE X1colour:Photo colorMaterial:ABSsize:12 x 6 x 1cmPackage Contents:1 x Gigabit network cardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.