Hi, Twrjack
Well, it’s very simple, there are two softwares, one for Windows and one for Macs.
Download of the page of SanDisk: http://kb.sandisk.com/app/answers/detail/a_id/2399
Compatibility
SanDisk SecureAccess software is supported by Windows XP, Windows Vista, Windows 7, Windows 8, and Mac OS 10.5 and up.
Use with a Mac requires other software download.
Enjoy.
Regards, Alfred.