WD Purple drives are built for 24/7, always-on, high-definition security systems. WD PurpleTM surveillance hard drives feature Western Digital’s exclusive AllFrameTM technology, so you can confidently create a security system tailored to the needs of your business. Using AllFrameTM technology, WD PurpleTM drives improve video capturing and help to reduce errors, pixelation, and video interruptions that can occur in a video recorder system. WD Purple drives have an enhanced workload rating that supports systems designed for 24×7 video recording with up to 64 cameras. In The Box 1x Western Digital WD Purple Surveillance Hard Drive