The My Book⢠drive is trusted desktop storage designed to complement your personal style with a massive amount of space to store your photos, videos, music and documents. Equipped with password protection and perfectly paired with WD Backup⢠or Apple Time Machine, My Book desktop storage helps keep your files safe.
WD My Book 4TB Desktop External Hard Drive:Auto backup with included WD Backup software and Time Machine compatibilityPassword protection with hardware encryptionTrusted storage built with WD reliabilityUSB 3.0 port; USB 2.0 compatible3-year limited warranty