Access files on the go or quickly sync your phone to your computer with this Western Digital My Cloud Home external Hdd. The 4TB of storage in this Hdd, 64Mb cache, white color and fast rpm speeds offer effortless use, and the WD hard drive even allows private accounts for different users. Connects via USB 3.0 or USB 2.0. Plugs into your wireless router for simple connection. 64Mb cache size provides ultra-fast processing speeds. 5400 rpm speed works quickly. Compatible with PCs and Macs. Works with Windows 7/8/8.1/10, Mac OS Sierra, El Capitan, Yosemite or Maverick, i OS 9 and 10 and Android Kit Kat (4.4), Lollipop, Marshmallow or Nougat. Allows mobile access to your files via the My Cloud Home app. File search helps you quickly find the file you're looking for. Automatically backs up photos and video on your phone or other files on your computer. Lets you create multiple, private accounts for each member of your family or team. Backed by the manufacturer's 2-year limited warranty. My Cloud Home external hard drive contains 4TB of storage.