MDCI Pro 6 5 1 2 3 4 5 NO. Name Descriptions 1 Display 3.99 inch, display working status 2 Ethernet port Connect to the Internet for remote diagnosis (reserved function) 3 I/O data port Type B USB port is designed for building stable communication when performing ECU Programming or IMMO Key Programming 4 Power port 12V DC input, separate power supply for J2534 and Bluetooth communication 5 Diagnostic port 16-pin OBDII port, connect to the OBDII extension cable