This cable connects your SoloDL to the OBD-II port on your car for easy addition of RPM and other vehicle data. One end has the K-Line plug to fit the diagnostic port, and the other end has a 7-pin 712 (screw-in) connector for the SoloDL.
This is the same cable supplied with the AiM SoloDL for OBD-II (Part No. MC-571).
Note: For SoloDL only, not for Solo.