Kensington USB 3.0 Multi-Display Adapter Connect additional monitors to your laptop, macbook or Ultra Book via USB; USB 3.0 ensures fast streaming and superb picture quality - 10x faster than standard USB connections Universally compatible with any brand or model of laptop Ultra Book and Surface Pro with a USB port. Works with any Windows-based computer, and supports Mac OS 10.14 Supports a connection to monitors, projectors and HDTV screens; superior high-definition Graphics supporting resolutions up to 2048 x 1152 Usb to DVI connection; also a dvi-&gt;vgaa adapter included No external power needed; powered from the USB laptop port