Use this MotorGuide Trolling Motor Transducer Adapter Cable to connect a compatible 8-pin fishfinder/GPS combo to a MotorGuide Trolling Motor Transducer. This adapter cable was designed to provide you with feedback from your Trolling Motor Transducer. It is compatible with the following Garmin devices: echoMAP 50dv, echoMAP 50s, echoMAP 70dv, echoMAP 70s, echoMAP CHIRP 72cv/dv/sv, echoMAP CHIRP 73sv/dv/sv, echoMAP CHIRP 74cv/dv/sv, echoMAP CHIRP 75cv/dv/sv, echoMAP CHIRP 9Xsv Series, ECHOMAP Plus 7Xcv Series, ECHOMAP Plus 7Xsv Series, ECHOMAP Plus 9Xsv series, GPSMAP 1020xs, GPSMAP 1040xs, GPSMAP 527xs, GPSMAP 547xs, GPSMAP 7400 Series, GPSMAP 7600 Series, GPSMAP 840xs, GPSMAP 8400 Series and GPSMAP 8600 Series. Marine grade trolling motor adapter cable made with UV and water resistant materials.