MAX Drive Pro
MAX Drive by Datel is a special memory card that can be can also be accessed via USB from a Windows PC. The 'Pro version is also supplied with a boot disc that can load code from specially converted save files.
The user interface for the MAX Drive Pro does not make it obvious how to copy .dol files to the device since .dol files are not in its MAX Drive's native save format they never appear in the list of save blocks. When a .dol file is drag 'n dropped onto the main application window however it will automatically be converted into the native format and copied onto the MAX Drive. Note that the conversion process will overwrite the original file so make a copy if you need one.