Laptop docking station external interfaces usb 20 audio out audio in kensington lock slot usb 30 video outputs hdmi vga dvi 1x usb 20 ports 2 usb 30 ports 4 lan standard gigabit ethernet 101001000 mbits compatible with toshiba tecra a50 a toshiba tecra w50 a toshiba tecra z40 a toshiba tecra z50 a toshiba portg z30 a toshiba portg r30