This usb c hub design with 3xUSB 3.0, HDMI(4K@30hz), 87W Power Delivery charger and SD/TF card reader. Perfect companion for your MacBook Air/Pro 2019/2018/2017 and supports Google Chrome OS/Windows7/8/10/XP/Linus/Vista system Our type C adapter equipped with 4K HDMI ports, which supports up to 4K@30Hz data speed and video displays. Easily stream media to a bigger monitor or television in stunning 4K