Western Digital 4TB Blue My Passport Portable External Hard Drive - USB 3.0 - Western DigitalBYFT0040BBL-WESN
Brand: Western Digital
Color: BLUE
Auto backup with included WD Backup software
Password protection with hardware encryption
Trusted drive built with WD reliability
USB 3.0 port; USB 2.0 compatible; SYSTEM COMPATIBILITY: Windows 10, Windows 8.1, Windows 7; Requires reformatting for Mac OS X operating system
3 year manufacturer's limited warranty