The Belkin USB Ethernet Adapter is a handy adapter for those who don't want to or are restricted from accessing the innards of their laptop or desktop computer. For those who want to upgrade, the installation couldn't be simpler; just plug into a free USB port on your computer and connect to an array of devices over 10/100 Base-T Ethernet including but not limited to; routers, broadband modems, servers, and other computers. With plug-and-play as well as the included software, setup is finished in minutes without the need for any tools.