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The WD Purple 4TB Surveillance HDD (WD44PURZ) is purpose‑built for 24/7 video surveillance systems, engineered to handle the demands of continuous recording and playback. With CMR recording technology, 128MB cache, and up to 175MB/s transfer rate, it ensures smooth video capture and reliable performance.
Exclusive AllFrame™ firmware reduces frame loss and enhances video quality, supporting up to 64 HD cameras and multi‑stream recording. With a workload rating of 180TB/year, MTBF up to 1 million hours, and tarnish‑resistant components, it’s optimized for DVR/NVR environments with up to 16 drive bays.
Compact and durable, the drive measures 5.79" × 4" × 1.03", weighs 1.21lbs, and operates reliably between 0°C–65°C. Backed by a 3‑year limited warranty, WD Purple delivers trusted surveillance‑class storage.
| Specification | Details |
|---|---|
| Model Number | WD44PURZ |
| Capacity | 4TB |
| Form Factor | 3.5" |
| Interface | SATA |
| Transfer Rate | Up to 175MB/s |
| Cache | 128MB |
| Recording Technology | CMR |
| Workload Rating | 180TB/year |
| MTBF | 1 million hours |
| Dimensions | 5.79" × 4" × 1.03" |
| Weight | 1.21lbs |
| Operating Temp | 0°C – 65°C |
| Non‑Operating Temp | –40°C – 70°C |
| Compatibility | Up to 64 HD cameras, up to 16 drive bays |
| Warranty | 3‑Year Limited Warranty |
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