Comply with PClExpress basic specification 2.0(5GTS) and backwards compatibility specifications 1.1 and 1.0A PCI power management specification 1.2 Support 10/100/1000 automatic configuration Support exchange/polarity/skew correction, detection and automatic correction. Support wake-up LAN and remote wake-up Support NDIS5,NDIS6 checksum uninstall (IPv4, IPv6, , UDP) and segmentation tasks, uninstall (mass transfer v1 and mass transfer v2). Support EMAC -393 ECMA ProxZzzy host sleep standard. Support full duplex flow control (IEEE 802.3X) Support jumbo frames Completely in line with IEEE 802.3, IEEE 802.3u and IEEE 802. standards. Support IEEE 802.1p Layer 2 priority coding (priority sorting). Support IEEE 802.10 VLAN tag (virtual local area network) Support IEEE 802.3az-2010(EEE). Support power-off/off-line power saving /PHY disable mode. Support PCI message signal interrupt ( and -X) Support quad-core receiver adjustment (RSS) Support for Protocol Unloading ( &NS) Supports two 1-channel 2.5Gbps PCIExpress buses. Support hardware error correction code (ECC) function Support hardware cyclic redundancy check () function. Main control chip: RTL8111G*2 Bus interface: PCI-E (supporting PCI-EX1 X4 X8 X16) Network interface: RJ-45*2 Transmission rate: 10/100/1000Mbps Product size: 120mm x 78.3mm x 66mm Product weight: 90g Support systems:for XP WIN7 WIN8 WIN8.1 WIN10, LINUX and other 99% operating systems and special applications such as soft routing, NAS and virtualization. Color:As shown Material:PCB Package Contents: 1set * PCI-E dual-port Gigabit network card Only the above package content, other products are not included. Note: Light reflection 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.