Description
Western Digital 3.5″ 4TB WD Purple Surveillance Internal HDD
Western Digital’s Exclusive AllFrameTM Technology
All WD Purple™ drives are equipped with AllFrame™ technology, which improves ATA streaming to help reduce frame loss and improve overall video playback, within a multitude of security video solutions.
Enhanced Workload Ratings
WD Purple™ drives feature a workload rating of up to 180TB/year⁷ – up to three times that of desktop drives – to handle the unique demands of mainstream video surveillance DVR and NVR systems.
Multiple Cameras, Multiple Streams
Modern recorders now support multiple video streams per camera. Select WD Purple™ drives support up to 64 single-stream HD cameras (see specifications table), and can also support many of the latest cameras that transmit multiple streams to enable basic AI functionality. With so many options, you have the flexibility to upgrade or expand your security applications in the future.
Designed for Today’s and Tomorrow’s Surveillance Solutions
With an MTBF of up to 1 million hours¹, WD Purple™ drives are engineered for mainstream surveillance DVRs and NVRs that operate 24/7. With tarnish-resistant components² and support for more than eight bays², WD Purple drives deliver reliable operation in surveillance systems even in harsh environments.
SPECIFICATIONS
| Model | WD42PURZ |
| Capacity | 4 TB |
| Form Factor | 3.5 inch |
| Advanced Format(AF) | Yes |
| Interface Transfer rate(max) | 6 Gb/s, 175 Mb/s |
| Cache | 256 MB |
| Performance Class | 5400 RPM |
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