Select your product to confirm this information applies to you
Garmin USB Data Card Programmer Compatibility with Mac Computers
Garmin's USB Data Card Programmer is currently compatible with Mac OS X. This product requires the use of the Garmin Aviation Database Manager for downloading and transferring aviation databases.
For more information, see the appropriate driver page:
USB drivers: http://www8.garmin.com/support/download_details.jsp?id=591
Aviation Data Card: http://www8.garmin.com/support/collection.jsp?product=010-10579-00