Western Digital this week announced the expansion of its WD Purple line of 3.5-inch hard drives to include a 6TB capacity model. The Purple family of HDDs are intended for video surveillance chores and include some exclusive technologies that make them better suited than competing drives, including AllFrame (reduces video frame loss, improves playback, and increases the number of drive bays supported) and IntelliSeek (calculates the optimum seek speeds for system workloads to lower power consumption and reduce noise and vibration).
Western Digital continues the trend of color coding its hard drive line by adding a Purple model built specifically for surveillance applications. The Purple line differs from regular hard drives in that they're better suited for 24/7 always-on conditions, whereas standard HDDs are built to run for only short intervals, WD says. In addition, Purple drives can withstand high temperature fluctuations and equipment vibrations inherent in typical surveillance applications.