Western Digital My Book 12TB External HDD Key Features 12TB External HDD 7200 rpm Rotation Speed Compatible with Windows and Mac USB 3.0 Interface 3-Year Limited Warranty Overview The WD 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 social media and cloud storage import, password protection, and perfectly paired with WD Backup or Time Machine, My Book desktop storage helps keep your files safe. Box Contents My Book Desktop HDD USB 3.0 Cable AC Adapter WD Discovery Software Quick install guide Specifications Disk Type HDD External? Yes Capacity 12TB Rotation Speed 7200 rpm Transfer Rate up to 150MB/s Interface USB 3.0 Compatibility Windows, Mac Dimensions 171 x 139 x 49 mm