







🔒 Secure your smart surveillance future with WD Purple Pro!
The Western Digital 22TB WD Purple Pro is a 3.5-inch SATA 6 Gb/s internal hard drive engineered for AI-enabled, always-on surveillance systems. Featuring OptiNAND technology and AllFrame AI, it supports up to 64 HD camera streams with a 512MB cache and 7200 RPM speed. Designed for enterprise workloads up to 550TB/year and an MTBF of 2.5 million hours, it delivers massive, reliable storage for advanced video analytics and deep learning applications.




| Brand | Western Digital |
| Manufacturer | Western Digital Technologies, Inc. |
| Series | WD Purple Pro |
| Colour | Purple |
| Form Factor | 3.5-inch |
| Item Height | 1.03 Inches |
| Item Width | 4 Inches |
| Product Dimensions | 14.71 x 10.16 x 2.62 cm; 671.32 g |
| Batteries | 1 AAAA batteries required. |
| Item model number | WD221PURP-SPB9SY0 |
| Hard Drive Size | 22 TB |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Drive Interface | Serial ATA-600 |
| Hard Disk Rotational Speed | 7200 RPM |
| Voltage | 28 Volts |
| Wattage | 50 Watts |
| Are Batteries Included | No |
| Lithium Battery Energy Content | 2.6 Watt Hours |
| Lithium Battery Weight | 5 Grams |
| Number of Lithium Ion Cells | 4 |
| Included Components | Internal Hard Drive |
| Manufacturer | Western Digital Technologies, Inc. |
| Country of Origin | China |
| Item Weight | 671 g |
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