Western Digital Elements Portable 4TB External HDD Key Features 4TB External HDD 5400 rpm Rotation Speed Compatible with Windows USB 3.0 Interface 2-Year Limited Warranty Overview WD Elements portable storage with USB 3.0 delivers universal connectivity, 4TB capacity and fast data transfer rates for consumers who are looking for reliable, high-capacity storage to go. The small, lightweight enclosure perfectly fits their style and is backed up by WD quality and reliability. Box Contents WD Elements HDD USB Cable Quick install guide Specifications Disk Type HDD External? Yes Capacity 4TB Rotation Speed 5400 rpm Transfer Rate up to 150MB/s Interface USB 3.0 Compatibility Windows Dimensions 110 x 82 x 21 mm