o Auto backup with included WD Backup software and Time Machine compatibility o Password protection with hardware encryption o Reimagined design o Easy to use o Trusted storage built with WD reliability o Up to 8TB capacity o USB 3. 0 port; USB 2. 0 compatible o 2-year limited warranty Complete Backup My Book desktop storage comes equipped with WD Backup software and Apple Time Machine compatibility to help make sure your photos, videos, music and documents don\'t get lost. You can set it to run automatically to your schedule. Just pick the time and frequency to back up important files from your system. My Book desktop storage also works great with Acronis(R) True Image(TM) WD Edition software to schedule complete system backups. With the power of WD Backup, Apple Time Machine compatibility and Acronis True Image WD Edition software, you\'ve got a complete backup routine to help recover data in the event of a computer virus, computer failure, or if you accidentally press \"delete\".