4. HDMI supports 4K 30Hz resolution, audio and video synchronization; VGA supports 1080P resolution, but does not support audio output; HDMI and VGA dual-port simultaneous output is 1080P resolution; USB3.0 theoretical transmission speed 5Gbps; Type-C supports PD 100W charging
5. Type-C notebook connected to projector/TV/monitor and other devices (compatible with most operating systems on the market such as windows and Mac OS)