Seagate SkyHawk Model No. ST2000VX008 2TB Surveillance Hard Disk Drive 1Pcs.HDD Description: Seagate SkyHawk 2TB HDD is 3.5 inch HDD interface with SATA 6GB/s and 64 Cache (MB). Image Perfect firmware supports 24×7 surveillance-optimized workloads tuned to record about 90% of the time and play back video footage the remaining 10%, and supports more cameras recording at higher resolutions than traditional drives.Workload rating of 180TB/year allows SkyHawk to perform reliably in write-intensive surveillance system. It implies 3x the workload rating of a desktop-class drive. ATA streaming support sustains recordings from up to 64 HD cameras for smooth, uninterrupted footage. NVR-ready design allows drives to maintain performance in RAID and multi-drive systems, giving customers the flexibility to grow with the booming NVR market and scale their systems when more storage is needed.