General device type hard drive external portable capacity 4tb interface usb 30 width 82mm depth 1182mm height 1985mm weight 236g performance interface transfer rate 50 gbps usb 30 software amp system requirements software included autobackup secure drive secretzone os required apple macos x 1048 or later microsoft windows vista 7 8 10 miscellaneous cables included 1 x usb cable enclosure colour black manufacturer warra