Created for owners of old or expired cards, the Navionics Updates GPS plotter card allows boaters to get the most up-to-date Navionics+ content and features at a great price. It is activated using an eligible card from Navionics or one from another brand, like C-MAP, Fishing HotSpots, Garmin, Lakemaster, Lowrance, Magellan or TrakMaps (list).