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 Why does Transcend include the Proposition 65 warning? Why is the writing speed of my StoreJet extremely slow when the reading speed is normal? Why are there files in my new StoreJet (external-HDD)? What are these folders/files for? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started