WD Purple 12TB Surveillance HD 3.5 inch


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Purple Model WD121PURZ

UPC Code: 718037863726

Provantage Code:  WND9072

Condition:  Factory New

  • Product Type: Hard Drive
  • Limited Warranty: 3 Year

Satisfaction Guaranteed

ElectronicsSecurity DevicesVideo Surveillance Systems


WD WD121PURZ Specifications

    WD Purple 12TB Surveillance HD 3.5 inch

At a Glance

    • Engineered specifically for surveillance security systems
    • Supports up to 180 TB/yr workload rate
    • 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 bays
    • Tarnish-resistant components


    The right drive for the right job.
    WD Purple™ 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™, 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.
    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 a NVR. Help make your surveillance solution future-ready knowing that WD Purple™ drives are ready for ultra high definition cameras. WD Purple capacities up to 8TB feature AllFrame 4K technology enabling high quality recording for up to 64 cameras. WD Purple 10TB and 12TB capacities feature AllFrame AI technology that enables not only recording up to 64 cameras, but also an additional 32 streams for Deep Learning analytics within the system.

    Enhanced workload rating
    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 10TB and 12TB drives with AllFrame AI feature a workload rating up to 360TB/year to support the Deep Learning analytics that are features 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.

    Designed for today's and tomorrow's surveillance solutions
    With an MTBF of up to 1.5 million hours, WD Purple drives are engineered for mainstream surveillance DVRs and NVRs that operate 24/7. With support for more than eight bays and tarnish resistant components, WD Purple drives deliver reliable operation in large scale surveillance systems in harsh environments.

Environmental Certification



    China RoHS


General Information
Product NameWD Purple 12TB Surveillance HD 3.5 inch
Product LinePurple
Product ModelWD121PURZ
Product TypeHard Drive
Technical Information
Storage Capacity12 TB
Drive InterfaceSATA
Drive Interface StandardSATA/600
Drive Performance
Spindle Speed (rpm)7200
Buffer256 MB
Physical Characteristics
Drive TypeInternal
Form Factor3.5"
Limited Warranty3 Year
Device SupportedCamera
Environmentally FriendlyYes
Other Information
Product FamilyPurple
Operating Power Consumption6.60 W
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WD Purple Model WD121PURZ