Western Digital Purple 3.5 8TB 5640rpm SATA3 (WD84PURZ)

Marketing DescriptionWD 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. Exclusive AllFrame technology helps reduce frame loss and improve overall video playback. WD Purple drives have additional performance headroom to support a new generation of Al-enabled NVRs, video analytics appliances, and deep-learning servers. Product Features

• The smart choice for surveillance
  WD Purple Surveillance Storage offers exclusive AllFrame technology to bring you premium reliability and peace-of-mind when installing your home or small to medium business security system. WD Purple's exclusive firmware upgrades work with ATA streaming to reduce error pixilation and video interruptions that occur when desktop hard drives are incorrectly used as storage in security systems. WD Purple Surveillance Storage is built for 24/7, always-on, high-definition surveillance security systems that use up to eight hard drives and up to 32 cameras.
• Desktop drives vs. surveillance-class storage
  You wouldn't use a bicycle to transport cargo across the country because it's not the right tool for the job. You also shouldn't use a desktop hard drive in your surveillance security system because it wasn't designed for that application. WD Purple surveillance-class storage has been tested to be compatible in a wide-range of security systems. These drives are designed to replace standard desktop drives that were not designed for the harsh 24/7 always-on, high-definition surveillance environment. Desktop drives are built to run for only short intervals and are not engineered to withstand high-temperature fluctuations and equipment vibrations found in a typical surveillance application.
• Surveillance storage for peace-of-mind
  Whether you're protecting your personal assets and loved ones or monitoring the business you worked hard to build, you can rely on surveillance-class storage built by one of the largest hard drive manufacturers in the world. WD Purple Surveillance Storage is designed for high temperature, always-on, surveillance security systems to ensure reliability and quality video play back when you need it most. Experience the security of knowing you're using a surveillance - class drive designed by a leader in the hard drive industry.
• Lower power consumption
  Low power consumption is crucial in high-temperature always-on surveillance environments. With exclusive IntelliSeek technology, WD Purple drives calculate the optimum seek speeds which lowers power consumption, noise and vibration that can damage and cause desktop drives to wear out more quickly. When you invest in a premium surveillance-class drive you worry less while enjoying the benefits over a longer period of time.

GeneralDevice TypeHard drive - internalCapacity8 TBForm Factor3.5InterfaceSATA 6Gb/sBuffer Size128 MBFeaturesAdvanced Format technology, surveillance system compatible, AllFrame 4K, tarnish-resistantWidth101.6 mmDepth147 mmHeight26.1 mmWeight720 gPerformanceDrive Transfer Rate600 MBps (external)Internal Data Rate194 MBpsSpindle Speed5640 rpmReliabilityMTBF1,000, 000 hoursNon-Recoverable Errors1 per 10^14Load / Unload Cycles300,000Expansion & ConnectivityInterfaces1 x SATA 6 Gb/sCompatible Bay3.5PowerPower Consumption6.2 Watt (read/write)
5.5 Watt (idle)
0.4 Watt (standby)
0.4 Watt (sleep)MiscellaneousCompliant StandardsRoHS 2011/65/EUManufacturer WarrantyService & SupportLimited warranty - 3 yearsEnvironmental ParametersMin Operating Temperature0 °CMax Operating Temperature65 °CMin Storage Temperature-40 °CMax Storage Temperature70 °CShock Tolerance (operating)30 g @ 2 msShock Tolerance (non-operating)250 g @ 2 ms