The symptoms suggest that your USB drive is corrupt and can be due to the following reasons: Related Article Fix a non working USB on Mac Disk Utility shows the connected USB drive in gray.macOS displays error messages while accessing the USB drive’s data.The USB drive has files with weird file names that do not open when accessed.Finder displays the drive, but its files and folders are not visible.
Sometimes, when you connect your USB drive to a Mac, the following things can happen: It can be an external flash drive, hard drive, or solid-state drive, which you can use it for storing and transferring data from different Macs, viz. A USB drive is a removable external storage device that connects to a Mac through a USB port of type A, B, or C.
