The A-USBLAN-2.5G is a 2.5Gb USB to Ethernet adapter specially adapted for TerraMaster TNAS devices. Connect the Ethernet adapter to a TNAS's USB 3.0 host to obtain up to 2.5G bandwidth on your TNAS. It is backward compatible with 10/100/1000Mbps network environment, and supports IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE802.3bz network standards; Plug and play, no need to install drivers. You can also use this Ethernet adapter with your computer, compatible with Windows 8/10/11 and Mac OS.