Peter wrote:


The cartridge format of the KLN94 is proprietary, designed to prevent
people duplicating the cartridge contents i.e. the Jeppesen database.


I doubt safeguarding Jepp data was a goal of King's selection of
non-standard cards.

The Garmin (nee-UPSAT) 480 and it's complementary MX20/GMX200
use industry standard cards (CF for the earlier units, SD for
the later) and standard Windows filesystems.

Jepp data (even for units with proprietary cards) is downloaded
to your computer for programming with either the standard interface
or the egregious skybound interface for the other Garmin units.