Garmin 12-Pin To Dual 4-Pin Transducer Y-Cable. Use this adapter cable when connecting a compatible 12-pin transducer to a compatible 4-pin Garmin device. Round shape with male-to-male connectors, designed for marine electronics and GPS accessory applications. Lightweight cable ideal for connecting transducers to Garmin units. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Type: Adapters.