Combined with the latest Realtek RTL8125 2.5GBase-T Technology,it can delivers extreme speeds of up to 2.5 Gbps, which is 2.5× faster than typical Gigabit adapters, guaranteeing smooth data transmissions for both internet access and local data transmissions With extreme speed and ultra-low latency, 2.5GBase-T is backwards compatible with Fast Ethernet and Gigabit Ethernet, automatically negotiating between higher and lower speed connections. Low-Profile and Full-Height Brackets. In addition to the standard bracket, a low-profile bracket is provided for mini tower computer cases. Customized options give you the flexibility to find a bracket that perfectly fits your board design Compatibel with PCI Express X1, X4, X8 or X16 slots on the motherboard and combined with a standard RJ45 Ethernet Port(NOTE: Only work with PCI-E slot, Not for PCI Slot.) Fully compatible with Windows 10(32/64); Win7 (32/64); Win8,8.1 (32/64); Windows Server 2012/2008,Linux to meet your diverse operating system n