National Geographic Magellan Topo Explorer Deluxe Simply insert the discs into your laptop or PC and you're ready to use! Maps are from 2008 so they aren't the newest maps by any means, but you will save a lot of money over buying new maps plus everything is loaded right on these discs so all you need to do is load them into your GPS! Compatible with: Magellan GPS units, TomTom GPS units, Mio GPS units, Garmin GPS units, Eagle GPS units Map Disc Part Numbers: DX-100-0408-0102 & DX-100-0408-0202 Internet Connection Required. DSL, Cable, or equivalent high-speed access recommended for performance.