The Xiaomi USB Type-C to HDMI Multifunction Adapter converts a USB-C output of your laptop or MacBook into HDMI output, allowing you to connect the laptop to a display with HDMI. The Xiaomi Mi USB-C to HDMI adapter supports 3D and 4K resolution.? You can use this adapter to use two screens simultaneously on your laptop, for example. You can also use the adapter to connect a screen and a projector, for example, so that you can give presentations easily. This adapter is suitable for many devices such as an external hard drive, a mouse, USB flash drive and more device