Compliant with PCI Express basic specification 2.0 (5GTs) and backward compatible with specifications 1.1 and 1.0A PCI Power Management Specification 1.2 Support 10/100/1000 automatic configuration Support exchange/polarity/skew correction, cross detection and automatic correction Support wake-up on LAN and remote wake-up Support Microsoft NDIS5, NDIS6 checksum offloading (IPv4, IPv6, TCP, UDP) and segmentation tasks, offloading (mass delivery v1 and bulk delivery v2) Support EMAC-393 ECMA ProxZzzy host sleep standard Support full duplex flow control (IEEE 802.3X) Support 9K byte jumbo frame Fully comply with IEEE 802.3, IEEE 802.3u standards, IEEE 802.3ab standards Support IEEE 802.1p layer 2 priority coding (priority sorting) Support IEEE 802.1Q VLAN tag (Virtual Local Area Network) Support IEEE 802.3az -2010 (EEE) Support power-off/drop-off power-saving/PHY disable mode Support PCI message signal interrupt (MSI and MSI-X) Support quad-core receiver adjustment (RSS) Support protocol offloading function (ARP & NS) Supports two 1-lane 2.5Gbps PCI Express buses Support hardware error correction code (ECC) function Support hardware cyclic redundancy check (CRC) function Support operating system for Windows ME, 98SE, 2000, XP, Vista, WIN7, WIN8, WIN10 32-/64-bit for Windows Server 2003, 2008 and 2012 32 -/64-bit for Linux,AYOS, MAC OS ,FREEBSD, DOS, ROS, sea spider, love fast Colour:As shown Material:Metal + plastic Package Contents: 1 * 4 port Gigabit Ethernet network card 1 * short baffle Only the above package content, other products are not included. Note: Light shooting 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.