Western Digital Purple 4TB Surveillance Hard Disk Drive, WD40PURZ

WD Purple drives are engineered specifically for surveillance to help withstand the elevated heat fluctuations and equipment vibrations within NVR environments. An average desktop drive is built to run for only short intervals, not the harsh 24/7 always-on environment of a high-definition surveillance system.

With WD Purple, you get reliable, surveillance-class storage that’s tested for compatibility in a wide range of security systems, and some of our latest models (WD22PURZ, WD42PURZ, and WD63PURZ) have improved power efficiency. Exclusive AllFrame™ technology helps reduce frame loss and improve overall video playback.

Western Digital's Exclusive AllFrame 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/year - 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. WD Purple drives support up to 64 single-stream HD cameras (6TB and above), 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 hours, WD Purple drives are engineered for mainstream surveillance DVRs and NVRs that operate 24/7. With tarnish-resistant components and support for more than eight bays, WD Purple drives deliver reliable operation even in harsh environments.

Western Digital Purple 4TB Surveillance Hard Disk Drive, WD40PURZ specifications

• Drive Type: Surveillance Hard Disk Drive (HDD)
• Capacity: 4TB (Terabytes)
• Rotational Speed: 5400 revolutions per minute (5400 RPM)
• Interface: SATA (Serial ATA)
• Cache Size: Typically 64MB or higher for improved performance
• Compatibility: Specifically designed for 24/7 surveillance applications
• Optimized for Surveillance: Tailored for use in DVRs (Digital Video Recorders) and NVRs (Network Video Recorders)
• AllFrame Technology: Designed to reduce frame loss, optimize video playback, and improve overall reliability in surveillance systems
• MTBF (Mean Time Between Failures): Typically high, ensuring reliable operation in continuous surveillance environments
• Advanced Format Technology: May incorporate Advanced Format technology for enhanced reliability and performance