Hard disk 3.5″ HDD 4 TB SATA – 256 MB Cache

Product Highlights
• Capacity up to 8TB1
• Designed for common surveillance systems
• WD AllFrame™ helps reduce dropped frames
• Supports up to 180TB/year workload⁷
• 3 year limited warranty9

PRODUCT DESCRIPTION MONITORING HARD DISK

WD Purple® Hard Drives
The right hard drive for Smart Video surveillance
WD Purple® drives are designed to meet the challenges of 24×7 video surveillance recording.

These units are specifically designed for surveillance to withstand the elevated temperature fluctuations and equipment vibrations within NVR environments. An average desktop device is designed to run only for short intervals, not the harsh 24/7 always-on environment of a high definition surveillance system.

With WD Purple drives, you get reliable surveillance-grade storage that's tested for compatibility across a wide range of security systems. Exclusive WD AllFrame™ technology helps reduce frame loss and improve overall video playback.

Industry leading Storage. Monitoring You Can Trust.
Western Digital has been providing surveillance-quality storage for over a decade.

With WD Purple® surveillance storage, drives are engineered for high-temperature, always-on surveillance systems so you can rely on quality video when you need it most. WD Purple delivers smart video storage you can trust and is backed by a 3-year limited warranty9.

Western Digital's Exclusive WD AllFrame™ technology
All WD Purple® drives are equipped with AllFrame™ technology, which helps reduce dropped frames and improve video recording and playback.

Improved Workload rating
WD Purple® drives have 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
More modern recorders now support multiple video streams per camera. WD Purple® drives support up to 64 single HD cameras3.

With so many options, you have the flexibility to upgrade or expand your security applications in the future.

Designed for Reliable Operation
Engineered for reliability with an MTBF of up to 1 million hours8 and backed by a 3-year limited warranty9, WD Purple® drives feature components that are resistant to discoloration11 and support storage systems with up to 16 drive bays12.

WD Purple® hard drives are designed with RAID error recovery control to help reduce errors in supported video recorders.

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 support for a wide range of industry-leading chassis and chipsets, you're sure to find the DVR or NVR configuration that's right for you.

Three Year Limited Warranty
As an industry-leading hard drive manufacturer, Western Digital stands behind its surveillance storage solutions with a 3-year limited warranty9 included with every WD Purple® drive.