1. Output: HDMI output pass through display HDMI 2. Input: HDMI input 3. Power: DC 5V power supply 4. USB HOST: for plug USB flash drive of USB HDD for saving record files 5. LED indicator: color be green when standby, be red when recording 6. REC button: press to record / stop 7. Mic: connect a microphone and record voice comments when play game