Features: The RTL8125B 2.5Gigabit Ethernet card supports a transfer rate of 2.5Gbps, which is faster than traditional Gigabit Ethernet cards, providing a faster network connection and data transfer experience. The network card is equipped with a high-performance RTL8125B chip, which has advanced network processing capabilities, is stable and reliable, and can achieve high-speed data transfer. Automatic negotiation with extended next page functionality Supports swap/sex/skew correction, crossover detection, and automatic correction Supports hardware ECC (Error Correction Code), hardware CRC (Cyclic Redundancy Check) function Supports ECMA393ProxZzzy standard for sleeping hosts, supports Wake-on-LAN and \"RealWow!\" technology Specifications: Compliant with PCIExpress Specification Revisionv2.1 Supports 1-Lane 2.5/5Gbps PCIExpress bus Integrated single 2.5G network port, integrated 10/100/1000M/2.5G transceiver Supports 2.5G and 1G Lite, 100M mode Automatic negotiation with extended next page functionality Supports swap/sex/skew correction Crossover detection and automatic correction Compliant with IEEE802.3, IEEE802.3u, IEEE802.3ab Supports quad-core receive-side scaling (RSS) Transmission medium: 1 x 2.5G RJ45 port Transmission rate: 2.5G/1000/100Mbps Network mode: Supports 2.5G and 1G Lite mode Network topology: - Supports IEEE1588v1, IEEE1588v2, IEEE80.2AS time synchronization System requirements: Win7/Win8/Server2008/Win8.1/Server2012/2016, Win10 32/64bit etc Supports IEEE802.3az-2010 Note: Due to lighting effects and shooting angles, there will be some tolerances in the product, please understand. Please allow 0-1cm error due to manual measurement Package includes: 1x RTL8125B Motherboard 1x RJ45 Network Terminal 1x Network Termination Cable 1x CD