Transaction-Safe FAT File System
Transaction-Safe FAT File System (TFAT) and Transaction-Safe Extended FAT File System (TexFAT) refer to two file systems used in Microsoft products to provide transaction-safety for data stored on a disk. The goal is to reduce the risk of data loss in cases of power loss or unexpected removal of the drive.
Source: Wikipedia — Transaction-Safe FAT File System (CC BY-SA 4.0)