Universal 16 Pin OBD 2 OBDII Male Connector Obd2 16pin Adaptor Eobd2 Obdii J1962 Connector Obdii Plug With Screws Car Diagnostic Cables and Connectors It is useful for many purpose for OBDII Cars This just a small connector,do not have any software Lots of cars do not have 16 pin connector,such as some old cars. But now lots of diagnose tool is 16 pin connector,so need to convert