Western Digital WD Purple 22TB 3.5' Surveillance HDD 7200RPM 512MB SATA3 6Gb/s 265MB/s 550TBW 24x7 64 Cameras AV NVR DVR 2.5mil MTBF 5yrs WD Purple Surveillance HDD Uncompromising Storage for 24/7, Always On Security Systems OVERVIEW Engineered for the Extreme Demands of 24/7 Surveillance Systems WD Purple??? surveillance storage features Western Digital?€?s exclusive AllFrame??? technology, so you can confidently create a security system tailored to the needs of your business. AllFrame technology improves ATA streaming, helping to reduce errors, pixelation, and other video interruptions that could happen in a video recording system. WD Purple drives have an enhanced workload rating that supports systems designed for 24x7 video recording with up to 64 cameras. WD Purple 8TB, 10TB, 12TB, and 14TB capacities feature AllFrame AI??? technology that enables an additional 32 streams for Deep Learning analytics within the system. High Capacity Up to 22TB for the needs of 24/7, always on high-definition surveillance systems Enhanced Workload Ratings Up to 180TB/year on capacities up to 6TB, and up to 360TB/year on 8TB and above Exclusive AllFrame Technology Help reduce frame loss, improve overall video playback, and increase the number of bays supported within a NVR Highlights Engineered specifically for surveillance security systems. Supports up to 360TB/yr workload rate1 Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications Prioritized write-operations for maximized surveillance performance TLER & ATA streaming support Support for more than eight bays2 Applications and Workload NVR & DVR Surveillance Systems Up to 64 Cameras Per HDD Deep Learning/AI Capable NVR Systems (8TB, 10TB, 12TB, 14TB & 18TB)