Full Specifications
Capacity
3 TB
Interface
SATA
Form Factor
3.5 Inch
Disk Speed (RPM)
5400rpm
Compatibility
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"
Product Highlights
• Capacity up to 18TB
• Engineered specifically for surveillance security
systems.
• Tuned for write-intensive, low bit-rate, high
stream-count workloads typical to most
surveillance applications.
• 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
future.
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.
Advance Information*
Overview
The 3TB Western Digital Purple 3.5 WD20PURZ Surveillance Hard Drive is specifically engineered for the rigors of continuous operation in high-definition surveillance systems. It is built to handle up to 64 cameras per drive and is designed for 24/7, always-on use, making it ideal for network video recorders (NVR) and digital video recorders (DVR) environments. This product embodies unmatched reliability, advanced technology, and extensive compatibility, tailored to meet the extensive demands of modern surveillance systems.
Specifications
- Capacity: 3 TB
- Interface: SATA 6 Gb/s
- Form Factor: 3.5 Inch
- Disk Speed (RPM): 5400 rpm
- Dimensions (L x W x H): 5.79" x 4" x 1.03"
- Product Code: WD20PURZ
- Compatibility: Designed to support up to 64 cameras, optimized for both DVRs and NVRs, suitable for high-definition surveillance security systems with more than eight bays.
Features and Capabilities
Surveillance-Class Storage
The Western Digital Purple 3.5 WD20PURZ Surveillance Hard Drive is engineered for high-temperature, always-on surveillance environments. Unlike regular desktop drives that are built for intermittent use, the Purple series is optimized for around-the-clock operation in high-definition security systems. The robust build ensures durability and reliability, critical for prolonged surveillance.
AllFrame™ Technology
Key to the performance of the WD Purple drive is Western Digital’s exclusive AllFrame™ technology, which enhances ATA streaming. This technology helps reduce frame loss, improves overall video playback, and increases the number of hard drive bays supported within a network video recorder (NVR). AllFrame ensures that your recorded surveillance footage is perennially accurate and smooth, making this hard drive an exceptional choice for security environments.
Enhanced Workload Ratings
WD Purple drives are designed to thrive under workload conditions unique to video surveillance DVR and NVR systems. With a workload rate of up to 180 TB/year, these drives are prepared to handle a greater volume of data transfer compared to standard desktop drives, which means they can keep up with the demands of modern surveillance recording.
Multi-Camera, Multi-Stream
Built with support for up to 64 HD cameras, the WD Purple 3.5 WD20PURZ is perfect for large surveillance setups. Whether used in a small retail environment or a large-scale corporate setting, this drive offers the flexibility to meet various security needs.
Tarnish-Resistant Components
The components within the WD Purple surveillance drives are designed to withstand harsh environmental conditions, including large surveillance systems located in challenging environments. The tarnish-resistant build ensures reliability and longevity, even under sustained heavy use.
Advanced Technology
Field-proven HelioSeal™
Although the 3TB model does not utilize HelioSeal™, the larger drives within the Purple range leverage this 6th generation technology for enhanced high-capacity storage. HelioSeal’s trusted and proven performance ensures that up to 18TB of storage capacity functions diligently in demanding conditions, making it easier to handle the immense data requirements of 4K surveillance video and deep learning tasks.
Wide Compatibility
Compatibility is one of the hallmarks of the WD Purple hard drives, ensuring seamless integration with a wide range of leading industry enclosures and chipsets. This feature makes it easier to expand and upgrade your surveillance system with minimal hassle.
Proactive Device Management
WDDA (Western Digital® Device Analytics™) offers detailed parametric operational and diagnostic data for tight control over the storage environment. This system allows IT professionals and system administrators to monitor and manage storage devices proactively, ensuring optimal performance through preventive maintenance.
Surveillance System Integration
The Western Digital Purple 3TB Surveillance Hard Drive is meticulously designed to integrate smoothly into today’s complex surveillance systems. Its ability to support multiple cameras and higher stream counts ensures that your surveillance setup scales up as your security needs evolve. The absence of frame loss and low bit-rate optimization makes it particularly suited for high-definition recording environments.
Benefits of Using WD Purple in Surveillance Systems
- Reliability: Built to run continuously in high-temperature, always-on environments typical in surveillance applications.
- Reduced Frame Loss: AllFrame technology minimizes the risk of frame loss, ensuring high-quality playback of recorded footage.
- High Workload Capacity: Handles up to 180 TB/year, making it suitable for intensive workloads associated with video surveillance.
- Scalability: Supports large-scale surveillance setups with up to 64 cameras and more than eight bays.
- Durability: Tarnish-resistant components provide additional protection, ensuring extended usage in challenging environments.
- Compatibility: Works seamlessly with a broad range of NVR and DVR systems, simplifying system
