Western Digital WD 4TB My Book Desktop External Hard Drive USB 30 WDBBGB0040HBKNESN

Massive capacity, up to 22TB capacity. (1TB = one trillion bytes. Actual user capacity may be less depending on operating environment.).Specific uses: Personal, Includes software for device management and backup with password protection (Download and installation required. Terms and conditions apply. User account registration may be required.), 256-bit AES hardware encryption, SuperSpeed USB (5 Gbps); USB 2.0 compatible, Trusted storage built with WD reliability