The Tru Link Gigabit USB (Universal Serial Bus) 2.0 Ethernet Adapter is a cost-effective solution for converting an existing USB (Universal Serial Bus) port to a 10/100/1000 Base-T Ethernet port without replacing or adding a network card. With this adapter users can create a network connection that allows them to connect to another network or computer without the need for a router or switch. The auto sensing feature detects the correct connection speed whether 10, 100 or 1000 Base-T. With speeds up to 480 Mbps, file transfer between computers is fast & easy, even with large amounts of multimedia data. The adapter works on older model computers that have no Ethernet port installed, so upgrades are quick & convenient. Simply plug in the adapter & load the included software driver to get 1000 Base-T connection speeds. This flexible solution requires no external power supply.