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- exFAT, 64-bit FAT (64-bit file allocation table; 64-bit file allocation table, 64-bit file allocation table) ; 64-bit allocation table version of FAT
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The SDXC standard will use the Microsoft exFAT file system (aka FAT64), which extends the venerable FAT file system to handle file sizes greater than 4 GB and more than 1000 files per directory.
Sometimes unofficially called FAT64, exFAT is similar to Microsoft's old FAT file system in that it ...
Beyond all these affirmations, the new SDXC cards will run on the exFAT file system, also known as the FAT64.
To the SD Card Association exFAT, which is FAT64, probably seemed like a natural evolution from FAT32 and FAT16.