Western Digital – WD40PURZ – 4TB Purple Surveillance 3.5″ Internal Hard Drive

WD Purple Surveillance Storage is built for 24/7 always-on surveillance in high-definition security systems that use up to eight hard drives and up to 32 cameras. Exclusive AllFrame™ technology works with ATA streaming to reduce error pixelation and video interruptions that occur when desktop hard drives are incorrectly used as storage in security systems.

Superior Storage. Superior Surveillance.

WD Purple™ drives are built for 24/7, always-on, high-definition security systems. With support for up to 8 bays and 32 cameras, WD Purple™ drives are optimized for surveillance systems. WD Purple™ surveillance storage also comes with WD’s exclusive AllFrame™ technology, so you can confidently create a security system tailored to the needs of your business. Using AllFrame™ technology, WD Purple™ drives improve ATA streaming to reduce errors, pixelation, and video interruptions that could happen in a video recorder system.

The Right Drive for the Right Job

WD Purple™ drives have been engineered specifically for surveillance, so they’re able to withstand the extreme heat fluctuations and equipment vibrations within a DVR environment. 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. A disruption to a drive could result in a failure that impacts multiple users, your security archive, or even the entire system. With WD Purple™, you get reliable, surveillance-class storage that’s tested for compatibility in a wide range of security systems.

Expand Your View to 32

Each WD Purple™ drive is optimized to support up to 32 HD cameras. With so many options, you have the flexibility to upgrade or expand your security system in the future.

Technical Specifications:

Specifications

• Interface: SATA 6 Gb/s
• Form Factor: 3.5-inch
• Advanced Format (AF): Yes

Performance

• Data Transfer Rate (max):
  • Buffer to host: 6 Gb/s
  • Host to/from drive (sustained): 150 MB/s
• Cache (MB): 64
• Rotational Speed (RPM): 5400 RPM Class

Reliability/Data Integrity

• Load/unload cycles: 300,000

Power Management

• Average Power Requirements (W):
  • Read/Write: 5.1
  • Idle: 4.5
  • Standby/Sleep: 0.4

Physical Dimensions

• Height: 25.4 mm
• Length: 147 mm
• Width: 101.6 mm
• Weight: 0.68 kg