Hikvision WD PURPLE (With Hikvision Certified) (WD-20PURX-78) (2TB)

2TB/64MB(6Gb/s)/IntelliPower(RPM)/SATA3 . Engineered specifically for surveillance security systems Reduced video frame loss.Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications. Prioritized write-operations for maximized surveillance performance. BufferAmount-64MB, RoHScompatible, Transfer Rate- 145MB/s, 64MB Cache, SATA 6Gb/s, 23dBA, 300,000 unload cycles, 5400RPM