1. HDMI loop output interface (supports 1920x1080P@60Hz)
2. HDMI signal input interface (supports 4Kx2K 3840x2160, 2560x1440, 1920x1080P)
3. High-speed USB3.0 output interface (connects to computer port)
4. Microphone input interface with 3.5 mm plug
5. DC 5V power supply interface (generally not required unless the computer is used when the power supply is insufficient)