MEGA Imaging uses high-frequency sonar so you can easily distinguish fish from structure, see the direction fish are facing and even target individual species. And now with MEGA Imaging+, you'll be able to scan deeper and wider without sacrificing clarity. Adapter connects your Humminbird HELIX 8, 9, 10 or 12 fish finder with a built-in MEGA Side or Down Imaging transducer on your trolling motor.