2TB WESTERN DIGITAL PURPLE 3.5 WD20PURZ SURVEILLANCE HARD DRIVE 3YRS WARRANTY
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Disk Speed (RPM)
WD Purple™ surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays2.
Dimensions (L x W x H)
5.79" x 4" x 1.03"
• Capacity up to 18TB
• Engineered specifically for surveillance security
• Tuned for write-intensive, low bit-rate, high
stream-count workloads typical to most
• 8TB and above have additional enhancements
and higher workload rate for AI-enabled
recorders, systems and solutions
• Supports up to 180 TB/yr workload rate (Up to
360 TB/yr workload rate on 8TB, 10TB, 12TB, 14TB
and 18TB drives).
• Support for more than eight bays.
• Tarnish-resistant components.
• 3-years limited Warranty
WD Purple™ drives are engineered specifically for surveillance to help 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 alwayson environment of a high-definition surveillance system. With WD Purple, you get
reliable, surveillance-class storage that’s tested for compatibility in a wide range of
security systems. Exclusive AllFrame™ technology helps reduce frame loss and improve
overall video playback. WD Purple 8TB⁴ and higher drives have additional performance
headroom to support a new generation of AI-enabled NVRs, video analytics appliances,
and deep-learning servers.
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 trust.
Western Digital’s 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 an NVR. WD Purple capacities up to
6TB⁴ feature AllFrame 4K technology enabling high-quality recording in a multitude of
security systems. WD Purple 8TB, 10TB, 12TB, 14TB, and 18TB capacities feature AllFrame
AI technology that enables not only recording multiple streams per camera 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 growing use of
deep learning analytics.
Multiple Cameras, Multiple Streams
Modern recorders now support multiple video streams per camera. WD Purple™ 8TB
and higher capacity drives are optimized to support up to 64 HD single-stream cameras13,
and can also support the latest smart cameras that transmit multiple streams. With so
many options, you have the flexibility to upgrade or expand your security system in the
Designed for Today’s and Tomorrow’s Surveillance Solutions
With an MTBF of up to 1.5 million hours¹, WD Purple drives are engineered for mainstream
surveillance DVRs and NVRs that operate 24/7. With tarnish-resistant components¹ and
support for more than eight bays², WD Purple drives deliver reliable operation in large
scale surveillance systems even in harsh environments.
Field-proven High Capacity
Now on its 6th generation, field-proven HelioSeal™ technology delivers trusted highcapacity WD Purple™ storage (10TB, 12TB, 14TB, and 18TB⁴) for the massive storage needs
of 4K surveillance video and deep learning analytics.
Wide Compatibility. Seamless Integration.
WD Purple™ hard drives are built with compatibility in mind, so you can quickly and
seamlessly add capacity to your surveillance system. With a wide range of industryleading enclosures and chipsets supported, you’re sure to find the DVR or NVR
configuration that’s right for you.
Proactive storage management with WDDA
Western Digital® Device Analytics™ (WDDA) provides a wealth of storage device
parametric operational and diagnostic data to the system; algorithms interpret the data
and direct the system to alert system administrators of specific recommended actions to
address potential issues. WDDA is intended to empower OEMs, system integrators, and
IT professionals to better monitor and proactively manage supported storage devices to
maintain optimal operation.
Three Year Limited Warranty
As an industry-leading hard drive manufacturer, WD stands behind their surveillance
storage solutions with a 3-year limited warranty included with every WD Purple drive.
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