Belkin 4x4 USB Peripheral Switch

Belkin 4x4 USB Peripheral Switch ... convenient design gives you immediate access to your USB devices through both a push button and through Belkin's new, easy-to-use Switch software. It keeps all your devices available without your having to detach and reconnect them from one computer to another, and gives you the option of using them all from a single computer or assigning each device to any of the connected computers.