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exFAT is the official file system of SDXC cards. Because of this, any device not supporting exFAT, such as the Nintendo 3DS, may not legally advertise itself as SDXC compatible, despite supporting SDXC cards as mass storage devices by formatting the card with FAT32 or a proprietary file system tied to the device in question.
exFAT is intended for use on flash drives and memory cards such as SDXC and Memory Stick XC, where FAT32 is otherwise used. Vendors usually pre-format SDXC cards with it. Its main benefit is its exceeding of the 4 GB file size limit, as file size references are stored with eight instead of four bytes, increasing the limit to 2 64 − 1 bytes.
exFAT does have a few advantages over FAT32, but they are irrelevant in many common use cases, where FAT(32) is used today as an exchange format on flash cards/sticks and where a relatively small number of large files is written once and not modified later on before the next delete/reformat (typically f.e. for usage in digital cameras ...
The Secure Digital eXtended Capacity (SDXC) format, announced in January 2009 and defined in version 3.01 of the SD specification, supports cards up to 2 TB, [b] compared to a limit of 32 GB [d] for SDHC cards in the SD 2.0 specification.
In Vista or with FAT32 formatting of the drive, the maximum is 4 GB. In Windows 7 or later with NTFS or exFAT formatting, the maximum cache size is 32 GB per device. Windows Vista allows only one device to be used, while Windows 7 allows multiple caches, one per device, up to a total of 256 GB.
Eagles beat back ailing Packers for NFL wild-card playoff win. Sports. Associated Press. Josh Allen leads balanced offense as Bills dominate Broncos for 31-7 wild-card win. Weather. Weather.
Robert Kraft has reportedly pushed to be enshrined in the Pro Football Hall of Fame for years. (Photo by Richard Heathcote/Getty Images) (Richard Heathcote via Getty Images)
FAT16 is the factory format of smaller USB drives and all SD cards that are 2 GB or smaller. FAT32 supports files up to 4 GB. FAT32 is the factory format of larger USB drives and all SDHC cards that are 4 GB or larger. exFAT supports files up to 127 PB. exFAT is the factory format of all SDXC cards, but is incompatible with most flavors of UNIX ...