There are a number of reasons why you need to format USB to FAT32 on a Mac. We’ll look at all these in detail in this article. There are basically two ways to format USB to FAT32 on Mac Terminal Command and Disk Utility and in case you lose important data while formatting, it is possible to recover the data using a data recovery tool. Some USB drives can’t be used directly with a Mac system until you format them to be compatible with the macOS extended file system. Updated to macOS Data Recovery Tips by Lopez on Aug 28, 2021