WD 3TB My Cloud Personal Network Attached Storage - NAS - WDBCTL0030HWT-NESN (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished it shows limited or no wear Includes all original accessories plus a 6 Month WD warranty Centralize your family's media collection - Back up and organize all your family's photos, videos and music in one secure place, and seamlessly stream them to all of your devices Automatic backup for all your computers - Photo and video backup for tablets and smartphones Compatible with PC and MAC - Windows 10, Windows 8, Windows 7 or Windows Vista operating systems - Mac OS X Yosemite, Mavericks, Mountain Lion or Lion, or operating systems