1, which can be expanded to a larger disk size.
Exfat is a system format suitable for flash memory, which is introduced to solve the problem that fat32 and other files do not support 4G and larger files, and the cluster size can be as high as 32MB.
2. Support access control lists (but not yet in Windows Vista SP 1).
3. fat file system (TFAT) supporting transaction security (optional function in WINCE)
4. The definable parameters provided to oem enable the file system to adapt to devices with different characteristics.
5. Timestamps can use UTC time, not just the local time zone (starting from SP2 Vista).
6. Support the transaction-safe FAT file system (TFAT) (an optional function in WINCE). Definable parameters provided to OEM can adapt the file system to devices with different characteristics. Timestamps can use UTC time, not just the local time zone (starting with SP2 Vista).
7. In addition, exFAT needs less disk space overhead than NTFS; It is found that formatting a 4GB flash drive to NTFS requires 472MB of disk space, while using exFAT requires 96KB.
ExFAT has the following disadvantages:
1. Some devices (such as PDA and DC) will not be able to use exFAT flash cards.
2. Devices using exFAT will not be able to use the ReadyBoost function of Windows Vista. (The new exFAT system in Windows 7 supports ReadyBoost.
3. The authorization method is not clear. Microsoft has applied for a patent for a part of the FAT file system, and users can add patches supporting exFAT on Windows XP.
4.exfat is more suitable for USB flash drive, which is born for USB flash drive.