Sorry itzbinnice this information is from garmin dot com..
Starting with the 2011.30 version of City Navigator Europe NT, the map file size for all of Europe is now larger than 2GB in size. The following is a list of Garmin's older model unit's that support a SD Card larger than 4GB but are not able to use a Map file that is larger than 2GB.
* nuvi 300 Series
* nuvi 600 Series
* nuvi 5000
* StreetPilot c500 Series
* zumo 400 Series
* zumo 500 Series
These units will not be able to use the following products:
* Full Coverage City Navigator Europe pre-programmed card
* Full Coverage City Navigator Europe Download
* Full Coverage City Navigator Europe Map Update
* A map file larger than 2GB loaded from MapSource or MapInstall
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