Y Cable - Side Imaging and Dual Beam - allows you to use two transducers on one unit without the use of a transducer switch. Y Cable - Side Imaging and Dual Beam - allows you to use two transducers on one unit without the use of a transducer switch.  For use with Side Imaging products only, in conjunction with a dual beam transducer only.  For improved high speed performance for bottom tracking.  30" length. Supports MEGA Side Imaging.