Seagate Video HD 2TB 3.5" SATA III Internal Hard Disk Drive (ST2000VM003)
It features a SATA 6Gb/s interface, 64MB cache, and operates at 5900 RPM. Optimized for low-power, quiet, high-definition video streaming, it supports up to 16 simultaneous HD streams. Interface: SATA III (6 Gb/s).