Western Digital Purple Surveillance Hard Disk 4TB.

WD PurpleTM 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 24x7 video recording with up to 64 cameras.
Industry-leading storage. Surveillance you can trust. Western Digital is a worldwide leader in the hard drive industry. With WD Purple 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 offers performance you can tru Exclusive AllFrame Technology All WD Purple drives are equipped with AllFrame 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. Make your surveillance solution future-ready knowing that WD Purple drives are ready for ultra high definition cameras. WD Purple capacities up to 6TB* feature AllFrame 4K technology enabling high quality recording for up to 64 cameras. WD Purple 8TB, 10TB, 12TB & 14TB capacities feature AllFrame AI technology that enables not only recording up to 64 cameras, but also supports an additional 32 streams for Deep Learning analytics within the system. 
Enhanced Workload Ratings 
WD Purple drives with AllFrame 4K technology feature a workload rating of up to 180TB/year - up to three times that of desktop drives - to handle the unique demands of modern video surveillance DVR and NVR systems. WD Purple drives with AllFrame AI technology feature a workload rating up to 360TB/year to support the Deep Learning analytics that is featured in AI capable NVRs.
Expand your view to 64 
Each WD Purple 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.
Low Power. High efficiency 
With our exclusive IntelliSeekTM technology, WD Purple drives are able to calculate optimum seek speeds. This keeps power consumption low so ambient noise and vibrations are at a minimum. 

·         Engineered specifically for surveillance security systems

·         Supports up to 180 TB/yr. workload rate ; Interface: SATA ; Spin Speed: 5400 RPM ; Power:- Idle: 2.9 W, Power Consumption: 3.3 W (Read/Write), 0.4 W (Standby/Sleep) ; Operating Temperature: 65degree C

·         Prioritized write-operations for maximized surveillance performance

·         Support for more than eight bays

·         Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications.