6 5 1 2 3 4 5 NO. Name Descriptions 1 Display 3.99 inch,display working status 2 Ethernet port Link to the Internet for remote diagnosis (reserved function) 3 I/O data Port Type B USB port is designed for building stable communication while ECU Programming or IMMO Key Programming 4 Power port 12V DC input,Separate power supply for J2534 and Bluetooth communication 5 Diagnostic port OBD-16 Port,used to connect with the OBD II extension cable