The usb3sdockd universal usb 30 laptop docking stationport replicator with dvi audio and ethernet adds an external dvi output headphonemic as well as gigabit ethernet and additional usb 30 and usb 20 ports all from a single device and over a single superspeed usb 30 connection this highly versatile port replicatoruniversal docking station features a dvi monitor output that can be used to expand or mirror your computers main desktop at video resolutions up to 1920x1200 the docking