Side Imaging/ Down Imaging unit with 2 SD slots compatible with Autochart, iPilot & many other accessories. I used a thru-hull transducer so the transom mount has never been opened/used. Upgraded to an 898. Screen replaced by humminbird prior to the 2016 season, has less than 50 hrs use since replacement. Includes the power cord, base, ram mount, unit, hard protective case & transducer. I will ship at my expense. Software version 6.300 (most recent update available) includes Navionics Countour XD preloaded charts.