The dub 1312 usb 30 to gigabit ethernet adaptor allows you to instantly add gigabit connectivity to your desktop notebook or netbook computer just plug the dub 1312 in to an available usb 30 port and you39re ready to connect to your switch hub or router with the speed and reliability of a wired gigabit connection the dub 1312 usb 30 to gigabit ethernet adaptor plugs into any available usb port on your computer to enable you to connect to an ethernet network at speeds up to 1 gbps high speed gi