Laptop docking station external interfaces lan rj45 usb 20 audio out audio in usb 30 video outputs displayport 2x dvi 1x hdmi vga usb 20 ports 3 usb 30 ports 3 lan standard gigabit ethernet 101001000 mbits compatible with lenovo thinkpad l440 lenovo thinkpad l540 lenovo thinkpad t440 lenovo thinkpad t440p lenovo thinkpad t440s lenovo thinkpad t540p lenovo thinkpad x240