The Realtek RTL8125 chipset, compliant with IEEE 802.3az and IEEE 802.3u supports the PCIe 2.1 interface. It provides up to a 250% increase in data rate and requires no changes to existing cable infrastructure.Compatible with the IEEE802.3u specification for 10/100Mbps Ethernet, the IEEE 802. specification for 1000Mbps Ethernet and the IEEE 802.3bz specification for 2500Mbps Ethernet. It supports an auxiliary power auto-detect function and will auto-configure related bits of the PCI power management registers in PCI configuration space.This Quad port 2.5Gbps PCIe network card adds four copper Ethernet port to your Server or Desktop computer and provides Multi-Gigabit Ethernet access to your network at four speeds: 2.5bps, 1G, 100Mbps and 10Mbps.Support Wake-On-LAN and RealWow Technology (remote wake-up), remotely power on/off your computer with WOL, good for centralized managementColour:As shownMaterial:MetalPackage Contents:1 set * Network CardsOnly the above package content, other products are not included.Note: Light 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.