The usb3sdockhd universal usb 30 laptop docking station with dvi hdmi audio and ethernet adds dual video outputs headphone and microphone jacks as well as gigabit ethernet and additional usb 30 and usb 20 ports to a laptop computer all from a single device and over a single superspeed usb 30 connection this versatile universal docking station features two independent external monitor outputs hdmi dvi that can be separately used to expand or mirror your computers main desktop plus