Description
Western Digital WD Purple Pro WD221PURP 22TB 3.5-Inch SATA 6Gb/s 7200RPM Surveillance Hard Drive
22TB 7200RPM AI-Optimized Surveillance HDD – WD Purple Pro Series
The WD Purple Pro WD221PURP is a 22TB 3.5-inch internal hard drive engineered for advanced, AI-enabled smart video systems. Designed for always-on surveillance environments, this enterprise-class drive delivers massive capacity, high performance, and dependable 24×7 operation for video analytics, deep-learning servers, and cloud-based storage solutions.
Powered by OptiNAND technology, the WD Purple Pro 22TB drive provides enhanced capacity and data management efficiency for next-generation smart video infrastructures.
Built for Advanced Smart Video Solutions
Optimized for:
AI-enabled NVRs and DVRs
Video analytics appliances
Deep-learning servers
Cloud-based video storage platforms
Enterprise surveillance systems
Key Features
22TB Storage Capacity
3.5-Inch Form Factor
SATA 6Gb/s Interface
7200 RPM Spindle Speed
512MB Cache
OptiNAND Technology
AllFrame AI Technology
Supports up to 64 Single-Stream HD Cameras
Up to 550TB per Year Workload Rating
Up to 2.5 Million Hours MTBF (Projected)
Enhanced Vibration Protection
Tarnish-Resistant Components
5-Year Limited Warranty
AI-Optimized Performance
Western Digital’s exclusive AllFrame AI technology improves ATA streaming to reduce frame loss and enhance overall video playback quality.
The WD Purple Pro 22TB drive is optimized to handle up to 64 single-stream HD cameras and supports multiple AI streams for advanced video analytics and deep-learning workloads.
Built for 24×7 Reliability
With a workload rating of up to 550TB per year and a projected MTBF of up to 2.5 million hours, this drive is engineered for continuous operation in demanding surveillance environments.
Designed with tarnish-resistant components and enhanced robustness, it performs reliably in multi-bay enclosures and harsher operating conditions.
Ideal Applications
Enterprise surveillance systems
AI-powered video analytics platforms
Deep-learning and smart video servers
Cloud-based video storage
High-capacity NVR and DVR systems
Technical Specifications
Brand: WD
Series: WD Purple Pro
Model: WD221PURP
Capacity: 22TB
Form Factor: 3.5-Inch
Interface: Serial ATA (SATA) 6Gb/s
Rotational Speed: 7200 RPM
Cache: 512MB
Technology: OptiNAND + AllFrame AI
Workload Rating: Up to 550TB/Year
MTBF: Up to 2.5 Million Hours (Projected)
Drive Type: Mechanical Hard Disk Drive (HDD)
Installation Type: Internal
Color: Purple
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