4-Pin Transducer to 8-Pin Sonar Port Connect a 4-pin transducer to an 8-pin sonar port on your compatible marine device with this adapter cable. Warning [https://productimageserver.com/prop65/6pt.png]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 [http://P65Warnings.ca.gov].