@orsza12

I read this on garmin site

AdriaTOPO XL is availible on SD/microSD card. For exploring the map on PC you can use free Garmin´s application BaseCamp. You can download BaseCamp on Garmin web site. Start BaseCamp and insert your SD/microSD card into card reader or connect GPS with inserted SD/microSD card with your PC.

So there is no mapsource version to purchase