WD Purple drives have been engineered specifically for surveillance, so theyre able to withstand the elevated heat fluctuations and equipment vibrations within a 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. 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 thats tested for compatibility in a wide-range of security systems.

Industry-leading storage. Surveillance you can trust. WD is a worldwide leader in the hard drive industry. With WD Purple surveillance storage, you have a drive engineered for high temperature, always-on surveillance systems so you can rely on quality video playback when you need it most. Whether youre protecting loved ones or monitoring your business, WD Purple offers performance you can trust.

Wide compatibility. Seamless integration.

WD Purple hard drives are built with compatibility in mind, so you can quickly and seamlessly add capacity to your surveillance system. With a wide range of industry-leading enclosures and chipsets supported, youre sure to find the DVR or NVR configuration thats right for you.*

Each WD Purple drive is optimized to support up to 64 cameras. With so many options, you have the flexibility to upgrade or expand your security system in the future.

Surveillance you can trust

With WD Purple surveillance storage, you have a drive engineered for high temperature, always-on surveillance systems so you can rely on quality video playback when you need it most. Whether you’re protecting loved ones or monitoring your business, WD Purple offers performance you can trust.

WD’s exclusive AllFrame 4K technology

All WD Purple drives are equipped with AllFrame 4K technology, which improves ATA streaming to help reduce frame loss, improve overall video playback, and increase the number of hard drive bays supported within a NVR. Futureproof your surveillance solution knowing that WD Purple is ready for ultra high definition cameras.

Enhanced workload rating

With a high workload rating WD Purple is designed to handle the unique demands of modern video surveillance DVR and NVR systems.

Wide compatibility, seamless integration

WD Purple hard drives are built with compatibility in mind, so you can quickly and seamlessly add capacity to your surveillance system. With a wide range of enclosures and chipsets supported, you’re sure to find the DVR or NVR configuration that’s right for you.

Less power, more efficient

With exclusive IntelliSeek technology, WD Purple drives are able to calculate optimum seek speeds. This keeps power consumption low so ambient noise and vibrations are at a minimum.

• Product Description: WD Purple WD20PURZ – hard drive – 4 TB – SATA 6Gb/s
• Type: Hard drive – internal
• Capacity: 4 TB
• Form Factor: 3.5″
• Interface: SATA 6Gb/s
• Data Transfer Rate: 600 MBps
• Buffer Size: 64 MB
• Spindle Speed: 5400 rpm
• Features: Time-Limited Error Recovery (TLER), Advanced Format technology, HelioSeal, surveillance system compatible, 24×7 availability, Write-Intensive Endurance, AllFrame 4K
• Dimensions (W x D x H): 101.6 mm x 147 mm x 26.1 mm
• Weight: 600 g
• Localisation: Worldwide
• Manufacturer Warranty: 3-year warranty
• General:
  • Device Type: Hard drive – internal
  • Capacity: 4 TB
  • Form Factor: 3.5″
  • Interface: SATA 6Gb/s
  • Buffer Size: 64 MB
  • Features: Time-Limited Error Recovery (TLER), Advanced Format technology, HelioSeal, surveillance system compatible, 24×7 availability, Write-Intensive Endurance, AllFrame 4K
  • Dimensions: 101.6 mm (Width) x 147 mm (Depth) x 26.1 mm (Height)
  • Weight: 600 g
• Performance:
  • Drive Transfer Rate: 600 MBps (external)
  • Internal Data Rate: 145 MBps
  • Spindle Speed: 5400 rpm
• Reliability:
  • 24×7 Operation: Yes
  • Non-Recoverable Errors: 1 per 1014
  • Load / Unload Cycles: 300,000
• Expansion & Connectivity:
  • Interfaces: 1 x SATA 6Gb/s
  • Compatible Bay: 3.5″
• Power Consumption:
  • Read/Write: 4.4 W
  • Idle: 4.1 W
  • Standby/Sleep: 0.4 W
• Miscellaneous:
  • Compliant Standards: Directive 2002/95/EC
  • Localisation: Worldwide
• Manufacturer Warranty:
  • Service & Support: Limited warranty – 3 years
• Environmental Parameters:
  • Operating Temperature: 0C to 65C
  • Storage Temperature: -40C to 70C
  • Shock Tolerance (Operating): 30 g @ 2 ms
  • Shock Tolerance (Non-operating): 250 g @ 2 ms
  • Sound Emission: 23 dBA