If you need 3.5-inch, high-capacity hard drives for surveillance purposes you should check out the WD Purple line. The line is specifically designed for video surveillance units in home and small business security environments.


The WD Purple provides up to eight hard drives and up to 32 high-definition (HD) video cameras. WD optimized the line of hard drives for surveillance applications to improve high-definition video playback, and operate in 24x7 workloads of surveillance environments. Different from ordinary desktop hard drives designed for eight hours of daily operation, WD Purple drives have the built-in reliability to operate in Hikvision home and small business system installations so critical video footage is available when it's needed most.

Optimized to withstand the demands of always-on digital PVR, DVR and NVR recording environments, WD Purple hard drives offer low power consumption and many advanced performance features typically reserved for enterprise-level storage. WD Purple hard drives are equipped with an array of exclusive WD technologies, including:

° AllFrame — When combined with ATA streaming support, AllFrame™ technology helps to reduce video footage loss with a proprietary cache policy management technology to help improve data flow and playback. WD Purple includes firmware upgrades that protect against video pixilation and interruptions within a surveillance system

° Advanced Format Technology (AFT) — This is a more efficient media format that enables increased areal densities, adopted by WD and other drive manufacturers to continue growing hard drive capacities

Built for integration into new or existing video surveillance systems, WD Purple hard drives are designed and tested to surveillance-class standards and are compatible with industry-leading chassis and chip-sets.

Shipping now through select distributors and resellers, the hard drives are available in capacities from 1TB up to 4TB and covered by a three-year limited warranty. The manufacturer's suggested retail price for the 3.5-inch 1TB drive is US$89.99; the 2TB version is $119.99; the 3TB drive is $159.99; and the 4TB model is $199.99. Go to http://products.wd.com/wdpurple for more info.