WD Passport PC/Mac Compatible

A drive formatted for Mac isn’t usable with Windows. A drive formatted for Windows NTFS will be read only on a Mac. You can use software on either Mac or Windows to overcome the format issue I don’t know if there are any free ones left for Mac. another alternative is to reformat the drive Fat32 and it should work on both. a drawback is the largest file size it will accept is 4 gig.

Joe