Can I retrieve my Mosaic project file by ejecting the memory card from a Mosaic Controller and inserting it into the appropriate port on my computer?
No. The only way to retrieve a Mosaic project file is via the controller's WebUI or the Network tab of Mosaic Designer 2.
Configurations can only be downloaded from Mosaic controllers running 2.X or greater firmware. Configurations on controllers running pre 2.X cannot be downloaded.