24/7 surveillance storage
The supplied information identifies the drive for continuous surveillance systems.
WD Purple Pro 22TB 3.5-inch SATA Surveillance Hard Drive - WD221PURP
Model # WD221PURP
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SKU: WD221PURP
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Western Digital WD Purple Pro | WD221PURP
Western Digital WD Purple Pro WD221PURP 22TB Surveillance Hard Drive
The WD Purple Pro WD221PURP is a 22TB 3.5-inch surveillance hard drive with 7200RPM operation, a 512MB cache, SATA 6Gb/s connectivity, up to 265MB/s and a supplied five-year manufacturer warranty.
22TB7200RPMUp to 265MB/s5-year warranty
Up to 64 cameras
The source lists support for up to 64 cameras per hard drive.
AllFrame technology
AllFrame technology is supplied to help reduce errors, pixelation and video interruptions.
Surveillance workload support
The source separately lists up to 360TB/year for 8TB and above and also contains the notation 550TBW.
Product overview
This WD Purple Pro model is supplied for NVR and DVR surveillance systems and is tuned for write-intensive, low-bit-rate, high-stream-count applications.
The source lists prioritised write operations, TLER and ATA streaming support, support for more than eight bays, and a five-year manufacturer warranty.
Workload and MTBF wording requires review
The supplied exact-SKU text lists 550TBW and 2.5mil MTBF without defining an interval or unit. It separately states up to 360TB/year for capacities of 8TB and above. These values have not been combined or reinterpreted.
Frequently asked questions
What capacity does the WD221PURP provide?
The WD Purple Pro WD221PURP provides 22TB of surveillance storage.
What interface, speed and cache are supplied?
The source lists SATA 6Gb/s, 7200RPM, a 512MB cache and up to 265MB/s.
Is the WD221PURP designed for continuous surveillance?
Yes. The supplied information identifies it for 24x7 surveillance systems.
How many cameras are supported?
The exact product text lists support for up to 64 cameras per hard drive.
What surveillance systems are listed?
The supplied applications include NVR and DVR surveillance systems.
What is AllFrame technology described as doing?
The source states that AllFrame technology helps reduce errors, pixelation and video interruptions in recording systems.
What workload and MTBF figures are supplied?
The source states up to 360TB/year for 8TB and above, and separately lists 550TBW and 2.5mil MTBF without defining an interval or unit.
What warranty applies?
The source states a five-year Western Digital manufacturer warranty, and DeviceDeal is an authorised reseller.
(WD221PURP)
Features and highlights
Western Digital WD Purple Pro WD221PURP 22TB Surveillance Hard Drive key details from the supplied product information.
22TB surveillance capacity
The supplied storage capacity is 22TB.
7200RPM and 512MB cache
The source lists 7200RPM operation and a 512MB cache.
SATA 6Gb/s and up to 265MB/s
The supplied interface is SATA 6Gb/s with a listed rate of up to 265MB/s.
Up to 64 cameras
The exact product text lists support for up to 64 cameras per hard drive.
AllFrame and streaming support
AllFrame technology, TLER and ATA streaming support are supplied.
Five-year warranty
A five-year Western Digital manufacturer warranty is supplied.
Technical specifications
WD221PURP
General information
| Brand | Western Digital |
| Model number | WD221PURP |
| DeviceDeal SKU | WD221PURP |
| Product line | WD Purple Pro |
| Product type | Surveillance hard drive |
| Capacity | 22TB |
| Form factor | 3.5-inch |
Performance and interface
| Interface | SATA 6Gb/s |
| Rotational speed | 7200RPM |
| Cache size | 512MB |
| Supplied transfer rate | Up to 265MB/s |
Surveillance operation
| Operating profile | 24x7 surveillance systems |
| Supported cameras | Up to 64 cameras per HDD |
| Supported systems | NVR and DVR surveillance systems |
| Bay support | More than eight bays, as supplied |
| Application profile | Write-intensive, low-bit-rate, high-stream-count surveillance applications |
| Technology | AllFrame |
| Streaming support | TLER and ATA streaming support |
| Write behaviour | Prioritised write operations |
Workload and reliability statements
| Workload rating | Up to 360TB/year for capacities of 8TB and above |
| Additional workload notation | 550TBW, retained exactly as supplied |
| MTBF notation | 2.5mil MTBF, retained exactly as supplied |
Warranty
| Manufacturer warranty | 5-year Western Digital manufacturer warranty |
| SKU | WD221PURP |
| Barcode # | 10718037893539 |
| Brand | Western Digital |
| Shipping Weight | 0.5000kg |
| Shipping Width | 0.026m |
| Shipping Height | 0.140m |
| Shipping Length | 0.108m |
5-year warranty
Manufacturer warranty
This product is covered by a five-year Western Digital manufacturer warranty.
DeviceDeal is an authorised reseller. Keep your DeviceDeal tax invoice as proof of purchase.
Warranty coverage and claims remain subject to the manufacturers terms, eligibility requirements and product assessment.
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