Normally, you will soon see the external drive WD My Passport on the desktop once it’s connected to your Mac’s USB port. Besides, you can learn how to access the contents on WD My Passport that’s not showing up on Mac Desktop/Finder/Disk Utility.
Summary: Is your external drive WD My Passport not showing up on your Mac? Here’s how to format a drive to be used on Mac, or repair a corrupted external hard drive.