Features: brand new and high quality Auto-negotiation with extended next page functionality. Support for swap/sex/skew correction. for Cross detection and automatic correction. Support hardware ECC (Error Correction Code), hardware (Cyclic Redundancy Check) function. Supports PCI MSI (Message Signaled Interrupt) and MSI-X. Supports ECMA-393 Prox Zzzy standard for sleeping hosts. Supports Wake-on-LAN and "RealWow!" technology (remote wake-up). System Requirements:Win 7/Win 8/Server 2008/Win 8.1/Server 2012/2016, Win 10 32/64bit, Linux...An available for M.2 A+E for KEY slot. Specifications: Bus Type: for M.2 A+E Transmission medium: 1 x 2.5G RJ45 port Transmission rate: 2.5G/1000/100Mbps Network Mode: Support 2.5G and 1G Lite mode Network topology: Support IEEE1588v1, IEEE1588v2, IEEE80.2 AS for time synchronization Support shaping algorithm based on IEEE802.1Qav credit Support IEEE802.1P layer 2 priority encoding Support IEEE802.1Q VLAN tagging Support IEEE802.3az-2010 Support IEEE802.3bz-2016 (NGBASET) Support full duplex flow control (IEEE802.3x) Package Includes: 1x M.2 A+E RTL8125B-Main Card 1x RJ45 terminals 1x Networks Terminals Cable note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.