Humminbird MEGA Imaging® technology uses high-frequency sonar to provide some of the sharpest, brightest and most detailed images we've ever seen. You'll easily be able to 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. The MKR-MDI-1 Adapter connects Humminbird HELIX fishfinders with 8", 9", 10" or 12" screens to Minn Kota trolling motors with built-in MEGA Down Imaging transducers.