SD CARD Navionics Platinum Plus Charts. The multi-dimensional marine charts take the navigational experience to a whole new level with 3D view, integrated aerial imagery layer, and port photos. Enjoy perspective well beyond that available from traditional charts, while viewing harbours, marina entrances, and surrounding topography. Consult geo-referenced Coast Pilot as well as coastal points of interest conveniently while underway. For boaters who don’t venture far beyond their homeport, Platinum+ XL size charts have all the valuable Platinum+ features, but for a smaller area. Platinum+ charts are eligible for Freshest Data & User Generated Content.