Easily expand and enhance the cartographic capability of your Magellan Meridian series or FX324 MAP family GPS receiver with this 64-megabyte Secure Digital (SD) memory card, enabling you to download additional highly detailed maps of streets, topography and more, from Magellan MapSend software products using a PC Data Cable. The industry standard Secure Digital format enables you to create custom maps on your PC and upload them to your Meridian series or FX324 MAP family GPS receiver, using Magellan MapSend navigational software. Fully rewritable, you can upload new sets of mapping detail to custom plan your new adventure any time you want.Unique portability enables you to switch SD memory cards when your journey takes you into new regions or when you want to share the saved data between GPS devices. Simply insert your preprogrammed SD memory card into the slot found under the battery cover and you're ready to navigate with enhanced cartographic capability.