The Right Drive for The Right Job WD Purple(TM) drives have been engineered specifically for surveillance, so they\'re able to 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. A disruption to a drive could result in a failure that impacts multiple users, your security archive, or even the entire system. With WD Purple(TM), you get reliable, surveillance-class storage that\'s tested for compatibility in a wide-range of security systems. Industry-Leading Storage. Surveillance You Can Trust WD is a worldwide leader in the hard drive industry. With WD Purple(TM) surveillance storage, you have a drive engineered for high temperature, always-on surveillance systems so you can rely on quality video playback when you need it most. Whether you\'re protecting loved ones or monitoring your business, WD Purple(TM) offers performance you can trust. Trust Your View with All Frame 4K(TM) Technology Missed frames and lost footage could be a serious problem when video surveillance needs to be retrieved. All WD Purple(TM) drives are equipped with All Frame 4k(TM) technology, which improves ATA streaming to help reduce frame loss, improve overall video playback, and increase the number of hard drive bays supported within a NVR. Help make your surveillance solution future-ready knowing that WD Purple(TM) drives are ready for ultra-high definition cameras. Enhanced Workload Rating With a workload rating of 180 TB/yr - three times that of desktop drives - WD Purple is designed to handle the unique demands of modern video surveillance DVR and NVR systems. Expand Your View to 64 Each WD Purple(TM) drive is optimized to support up to 64 cameras. With so many options, you have the flexibility to upgrade or expand your security system in the future. Designed for Today s and Tomorrow s Surveillance Solutions E