What is the factory default file system for Transcend products? Category : Specification / Capacity / Performance The factory default file system is determined by the product category, series, and storage capacity, as shown in the table below. Is the answer helpful? Related How do I know if my computer supports USB 3.0? Transfer speeds fluctuated or dropped when I copied/moved files to an external storage device on a Windows 10 system. Why couldn’t I use and format my JF920 on the car after Tesla has updated its car software? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started