Humminbird M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX 9. Allows the use of two side imaging transducers with one unit without the need for a transducer switch.Y Cable - Separates Side Imaging into Left and Right Side Beams - for Side Imaging products only. Allows the use of two side imaging transducers with one unit without the need for a transducer switch. Used in applications where the a plastic thru the hull transducer is required on a boat with a deep V hull or the motor or other items on the transom of the boat may block one side of the transducer and distort readings. 30" length. Supports MEGA Side Imaging. Specifications for Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX: Manufacturer: Humminbird Color: Black Features of Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX Y Cable - Separates Side Imaging into left and right Side Beams Allows the use of two side imaging transducers with one unit without the need for a transducer switch Used in applications where the a plastic thru-the-hull transducer is required on a boat with a deep V hull or the motor or other items on the transom of the boat may block one side of the transducer and distort readings 30" cable length Supports MEGA Side Imaging Package Contents: Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX Humminbird 720102-1: M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX