Features: Compliant with PCI Express Base Specification 2.0 (5GTs) and backward compatible with specifications 1.1 and 1.0A. Supports exchange/polarity/skew correction, cross detection and automatic correction. Support wake-up LAN and remote wake-up, support 10/100/1000 automatic configuration. Support for Microsoft NDIS5, NDIS6 checksum offload (IPv4, IPv6, TCPUDP) and split tasks. Support EMAC-393 ECMA ProxZzzy host sleep standard. Support full-duplex flow control (IEEE 802.3X), support for jumbo frames. Fully compliant with IEEE 802.3, IEEE802.3u and IEEE802.3ab standards, supporting IEEE 802.1p Layer 2 priority transcoding(prioritization ranking). Support IEEE802.1Q VLAN tagging (virtual LAN). Support IEEE802.3az-2010 (EEE). Support power off/offline power save/PHY disable mode. Support for PCI message signal interruption (MSI and MSI-X). Support quad-core receiver adjustment (RSS). Support protocol offload function (ARP&NS). Supports two 1-channel 2.5Gbps PCI Express buses. Support hardware error correction code (ECC) function. Support hardware cyclic redundancy check (ECC) function. Specifications: Material: ABS Size: Approx. 10*10*2cm/3.94*3.94*0.79inch Model: 8104-T2 Main control chip: 2*RTL8111G Bus Interface: PCI-E(Support PCI-EX1 X4 X8 X16) Network Interface: 2*RJ45 Transmission rate: 10/100/1000Mbps Support System: For Windows XP/WIN7/WIN8/WIN8.1/WIN10, For Linux and other 99% of operating systems and soft routing, NAS, virtualization and other special applications. Package list: 1 x Network Card 1 x Sheet iron 1 x Screw Bag 1、Compliant with PCI Express Base Specification 2.0 (5GTs) and backward compatible with specifications 1.1 and 1.0A. 2、Supports exchange/polarity/skew correction, cross detection and automatic correction. 3、Support wake-up LAN and remote wake-up, support 10/100/1000 automatic configuration. 4、Support for Microsoft NDIS5, NDIS6 checksum offload (IPv4, IPv6, TCPUDP) and split tasks. 5、Support EMAC-393 ECMA ProxZzzy host sleep standard.