Perfect solution to the problem of less interface.. 2. Multi-function: 3 in 1 adapter. Allow you connect your MacBook to an HDMI monitor projector display, while also connecting a standard USB device and a USB-C charging cable.. 3. Durable design: Providing maximum conductivity and improving the Hi-Speed signal transmission.. 4. HDMI port: Perfect to mirror your MacBook display to your TV or display in up to 4K at 60Hz or UHD at 30Hz. It also outputs video content like movies and captured video.. 5. Easy operation: Plug and play, no driver installation or external power required. Can connect U disk, hard drive, mouse, keyboard, phone, and etc.