The OBD2 16pin extension cable allows you to connect compatible diagnostic tools with a 16 pin socket.OBDII 16 Pin Extension Cable Adapter Male to Female.Compatible diagnostic tools with a 16 pin socket. Multiple cables can be daisy-chained together to achieve longer length. Suitable for 16 Pin Advanced Bluetooth OBD-II Car Diagnostic Auto Interface Scanner.High quality materials give the cable superior flexibility and durability.Can save the wear and tear on your scan tool's OBD2 connector.