Seagate CCTV Surveillance 1TB Internal Hard Disk Drive 3.5"" Desktop HDD DVR NVR SKU: CCTHDISK1TB Built for Surveillance HD technology provides 1920*1080P Full-HD video with sharp and detailed images. Reliable and Stable Enhanced caching capabilities enable superior video recording quality. SATA interface The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. Data-transfer rates with a default of 6Gb/s. 5900 RPM 5900 RPM spindle speed Full-track multiple-sector transfer capability Full-track multiple-sector transfer capability without local processor intervention Quick Transfer Rate High instantaneous (burst) data-transfer rates with a default of 6Gb/s.