Mini DisplayPort to HDMI DVI DP 4K VGA Adapter, Topoint Thunderbolt to HDMI DP DVI VGA Adaptor Converter Compatible Old MacBook Air/MacBook/MacBook Pro,Surface Book Surface Pro 3/4 ThinkPad X1 Thunderbolt(1/2) to HDMI/DVI/DP/VGA converter can be used with old MacBook/MacBook Pro/MacBook Air, iMac, Mac Mini or other devices that come with mini DP(thunderbolt 1/2 compatible) port.(Note: the DVI output of this adapter is DVI-I Standard), DON'T compatible with iPad/iPhone, 2016/2017/2018 new MacBook/MacBook Pro & newest 2018 MacBook Air, as they with usb type c port(thunderbolt 3) only. 4-in-1 MiniDP to HDMI/DVI/DP/VGA adaptor let you connect your mini-dp equipped devices to a high definition monitor, projector, or LCD which with DVI/HDMI/DP/VGA connector. All four output ports( HDMI DVI VGA DP) cannot work at the same time, the output ports is designed to use separately, and a extra active/male VGA HDMI DVI DP extend cable is required. Enables full 4K x 2K resolution(Only HDMI/DVI/DP Ports), 3D stereo beyond full HD, Supports video resolutions up to 3840*2160 and support stereoscopic images beyond full. Automatic detect the display by plugging and unplugging it, Powered from Mini Display Port source.