How To Format And Use a USB Flash Drive On Your Mac
You can use pretty much any USB flash drive with your Mac. But be sure to buy one with the right connection type, either USB-A or USB-C, or get one that has both. Most drives are preformatted for Windows, so you probably want to reformat it for your Mac. You can add and remove files from a USB flash drive using the Finder. Be sure to eject the drive first before phsyically disconnecting it.