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SD Card Size Requirements for Downloadable Content Maps
Garmin has many map products available as Downloadable Content (DLC) for use in compatible devices. The file size of the DLC will determine the size of the microSD/SD card needed. Each map product's web page has a Requirements tab with this information. Check the Requirements tab to confirm that the compatibility and system requirements are met before purchasing DLC.
Select a microSD/SD card that is larger than the file size for the desired DLC product. However, do not use a card that exceeds the size limit for the device. For information on maximum supported microSD/SD card sizes, see Related Content.