1. HDMI loop out interface (support 1920x1080P@60Hz) 2. HDMI signal input interface (support 4Kx2K 3840x2160, 2560x1440, 1920x1080P) 3. USB3.0 high-speed output interface (connect to PC port) 4. 3.5mm plug microphone input interface 5. DC 5V power interface (generally not required, unless the PC is used when the power supply is insufficient)
