HP 3TB 6G SAS 7.2K rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive, 3 TB, 7200 RPM, 3.5", SAS HP 3TB 6G SAS 7.2K rpm LFF (3.5-inch) SC Midline 1yr Warranty Hard Drive. HDD capacity: 3 TB, HDD speed: 7200 RPM, HDD size: 3.5", Interface: SAS