Humminbird M SIDB Y 9-Pin Side Imaging Dual Beam Splitter Cable 9. 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. Specifications for Humminbird 9 M SIDB Y 9-Pin Side Imaging Dual Beam Splitter Cable: Manufacturer: Humminbird Color: Black Features of Humminbird 9 M SIDB Y 9-Pin Side Imaging Dual Beam Splitter Cable Y Cable - Separates Side Imaging into left and right Side Beams 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 Improves high speed performance for bottom tracking Supports MEGA Side Imaging Package Contents: Humminbird 9 M SIDB Y 9-Pin Side Imaging Dual Beam Splitter Cable Humminbird 720101-1: M SIDB Y 9-Pin Side Imaging Dual Beam Splitter Cable