WD Purple 1TB SATA 6Gb/s HDD 3.5inch internal 64MB Cache

WD Purple drives are designed to meet the challenges of 24 x 7 video surveillance recording. These drives are engineered specifically for surveillance to help withstand the elevated heat fluctuations and equipment vibrations within NVR environments. An average desktop drive is built to run for only short intervals, not the harsh 24/7 always on environment of a high-definition surveillance system. With WD Purple drives, you get reliable, surveillance-class storage that's tested for compatibility in a wide range of security systems. Exclusive WD AllFrame technology helps reduce frame loss and improve overall video playback.
Product Description: WD Purple WD11PURZ - hard drive - 1 TB - SATA 6Gb/s | Type: Hard drive - internal | Capacity: 1 TB | Form Factor: 3.5" | Interface: SATA 6Gb/s | Data Transfer Rate: 600 MBps | Buffer Size: 64 MB | Features: Advanced Format technology, Conventional magnetic recording (CMR), support up to 64 cameras, AllFrame, tarnish-resistant | Dimensions (WxDxH): 101.6 mm x 147 mm x 26.1 mm | Weight: 450 g | Manufacturer Warranty: 3-year warranty