6-in-1 USB C Hub: UGREEN 6-in-1 USB C hub features a 4K HDMI output port, SD, and TF card readers, and 3 USB 3.0 ports, which perfectly solves the problem of devices without interfaces or too few interfaces. 4K UHD Visual Feast: USB C Hub HDMI can mirror or extend your screen, and provide 3D effect video and Audio sync, allowing you to experience vivid presentations in meetings or enjoy 3D games.