6-in-1 Instant USB C Hub Expansion: Expand more ports to connect more. UGREEN 6-in-1 Mac USB adapter features a 4K HDMI output port, SD and TF card readers, and 3 USB 3.0 ports. And all hub ports can work simultaneously, small yet mighty. HDMI Port for 4K UHD Visual Feast: Mirror or extend your screen with UGREEN USB-C to HDMI adapter directly stream 4K UHD, Full HD 1080p, or 3D video to HDTV, monitor, or projector. You could enjoy movies with your family on a bigger screen, or making a vivid presenting in a meeting.