High quality 6-foot (1.8 meters) OBD-II cable, with molded connectors and strain relief. Works with our interface unit, as well as interfaces made by some other manufacturers (for example, Autotap), and even some home-made interfaces.
Warning: the OBD-II cable is designed to be used in conjunction with the "ElmScan" family of interfaces (or other interfaces, which isolate your computer from the vehicle's electrical system). Plugging the cable directly into the PC may damage the serial port.