Description Connect your 4-pin transducer to your sonar unit with this 10 ft (3 m) extension cable. Transducer extension cable. 10 ft (3 M) length. For echo series Use this 10′ (3 M) extension cable to connect your 4-pin transducer to your sonar unit. Compatible with Garmin echo 100, echo 101, echo 150, echo 200, echo 300c, echo 500c and echo 550c.
