7” Hi Res 800x480 sunlight viewable display Internal 50 channel WAAS GPS receiver and antenna. Connection for the optional external 50 Channel WAAS GPS Smart antenna Si-Tex MDS Series Radar and AIS capable 1 Video input with Picture In Picture display 3000 Marks / 50 Routes 20 Tracks with 10000 available track points Dual chart window with independent zoom levels Satellite images on base map Navigate to an Olympic route Route checking Dedicated MARK, ROUTE and FIND keys C-MAP NT+ and C-MAP MAX compatible Supplied with a swivel mounting bracket and flush mounting hardware Overall dimension: 5.7"W x 9.9"W x 2.5"D Flush mount cut out: 4.3"W x 8.9"W 3 NMEA inputs / 3 outputs 3 Year Waterproof Warranty Fish Finder Features Built-in 600W dual frequency fishfinder 50 and 200kHz selections 2X and 4X zoom Bottom lock and white line selections Sensitivity Time Control (STC) and Surface Noise Filters Speed through water (available on optional DST521 and DST526 transducers) Alarms - Shallow, Deep, Temp upper and lower