Humminbird 9-M360-2DDI-Y Y-Cable For M360 With Helix HW TransducersUpgrade your HELIX sonar setup with the Humminbird 9 M360 2DDI Y Y Cable. This purpose built adapter combines a MEGA 360 Imaging transducer with a 7 pin Dual Spectrum MEGA Imaging+ transducer into a single plug for easy connection to compatible HELIX fish finders. Model: 720107 1 Function: Transducer Adapter Cable that pairs a MEGA 360 Imaging transducer with a 7 pin Dual Spectrum MEGA Imaging+ transducer for a single plug connection to a HELIX unit