Perfect for storing all your essential data, the Western Digital ELEMENTS-DESK2TB provides an easy to use, durable Backup drive. Store up to 240 Hours of HD video or 400, 000 Digital photos with its massive 2 terabytes of storage space while its plug & play simplicity means you can begin transferring data right after plugging in the USB (Universal Serial Bus) cable without the need for software. The ELEMENTS Hard Drive uses Western Digitals Green Power Technology, this feature turns the Hard drive on or off with your computer, saving on energy use.