Experience unparalleled coverage and brilliant detail with Garmin Marine Cartography when you're on the water with charts that feature integrated Navionics data, Auto Guidance technology and more.• Compatibility: Compatible With Chart Plotters• Chart Coverage: HXUS604X All US And Western Canada Coastal• Storage: On SD/ Micro-SD Card With Integrated Garmin/Navionics Content On SD/Micro-SD Card Auto-Guidance, Depth Range Shading, Shallow Water Shading, Detailed Contours And NOAA Raster Cartography | Marine Cartography, US Eastern Coast, Western Coast, Alaska, Hawaii