The 3.5" Hitachi Deskstar 7K2000 HDD comes with a protective internal enclosure. It offers a massive storage space of 2000 GB and 32768 KB buffer size to conveniently store large user data. This Hard Disk Drive (HDD) connects through SATA II/SATA I interface and can be used with both PC and Mac operating system. Its 7200 RPM spindle speed ensures smooth and efficient operation.