Features :Experience rapid processing speed with 256 MB cache buffer,With 4 TB capacity you have ample space for storing millions of images, hundreds of hours of video or for music lovers, up to a million songs,Have data stored faster with SATA/600 interface that optimizes burst performance,Hard Drive is reliable and offers convenient storage solution,Makes frequent file access and retrieval easy and convenient,3.5" form factor for added reliability and dependability,