VUS027R G2 VISION HAWAIIAN microSD™/SD™ card Premier Coastal Navigation Charts. Provides industry-leading coverage, clarity and detail with updated coastal charts that feature integrated Garmin and Navionics® data. Auto Guidance¹ technology uses your desired depth and overhead clearance to calculate routes and show a suggested path to follow. Depth Range Shading provides up to 10 depth ranges, enabling you to view your target depth at a glance. Up to 1’ contours provide a more accurate depiction of the bottom structure for improved fishing charts and navigation in swamps, canals and marinas.