DESC: The Magellan RoadMate 300 calculates your route and automatically updates your directions when you decide to take a detour. You can route anywhere on the detailed maps and/ or on the basemap without having to download anything from your PC. The Magellan RoadMate 300 comes with a built-in map of major European roads and motorways. And it also includes a 512 secure digital (SD) card pre-configured with detailed maps of your country and some neighbouring countries.