HDMI Port: OutputSupport video resolution up to 4K UHD (3840x2160) 30Hz, and compatible with 1080P 60Hz, 720P.USB 3.0 Port:USB-C Port:Charging laptop through Type-C female interface, 5W-60W automatically adaptive.Transmission speed up to 5Gbps,and work with keyboard, mouse, flash drive or a USB cable for syncing and charging smartphones or other devices.