Western Digital 14 TB My Book Desktop External Hard Drive equipped with WD Backup software for Windows and Apple Time Machine compatibility for Mac, it can back up your photos, videos, music and documents. It also works great with Acronis True Image WD Edition software to schedule full system backups. It is built-in 256-bit AES hardware encryption with WD Security tools helps keep your content private and safe. Just activate password protection and set your own personalized password.