HIGHLIGHTS: WD Purple 4TB Surveillance Internal HDD
Storage Capacity – 4TB
HDD Form Factor – 3.5-inch
Hard Disk Interface – SATA
RoHS Compliant – Yes
Interface Speed – 6 Gb/s
ABOUT WD Purple 4TB Surveillance Internal HDD
The WD Purple 4TB Surveillance Internal HDD is specially designed for surveillance to help withstand high thermal fluctuations and equipment vibration within the NVR environment. An average desktop drive is designed to run only for short intervals, not the rigorous 24/7 always-on environment of a high-definition surveillance system.
With the Western Digital Purple 4TB 5400RPM Surveillance Desktop Internal HDD you get reliable, surveillance-grade storage that’s tested to comply with a wide range of security measures. Exclusive AllFrame technology helps decrease frame loss and improve overall video playback.
FEATURES:
Industry-leading storage. Surveillance you can trust – Western Digital is the global leader in the hard drive industry. With WD Purple Surveillance Storage, you have a drive built for high-temperature, always-on surveillance systems so you can count on quality video playback when you need it most. Whether you’re protecting loved ones or monitoring your business, WD Purple delivers the performance you can trust.
WD’s exclusive AllFrame 4K technology – All WD Purple drives are equipped with AllFrame technology, which enhances ATA streaming to reduce frame loss and improve overall video playback in many security video solutions.
Increased Workload Rating – WD Purple drives have workload ratings of up to 180TB/year – 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 numerous video streams per camera. WD Purple drives support up to 64 single-stream HD cameras (6TB and up) and can support many recent cameras that send multiple streams to enable basic AI functionality. With so many options, you have the flexibility to boost 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, Western Digital Purple drives are engineered for mainstream surveillance DVRs and NVRs that operate 24/7. With tarnish-resistant material and support for more than eight bays, WD Purple drives provide reliable operation even in harsh environments.
Wide compatibility. Seamless integration – Western Digital Purple hard drives are built with compatibility in mind, so you can fast and seamlessly add capacity to your surveillance system. With a wide range of industry-leading enclosures and chipsets supported, you’re sure to find the DVR or NVR configuration that’s right for you.
Active Storage Management with WDDA – The Western Digital Device Analytics (WDDA) system provides a wealth of storage device parametric operational and diagnostic data; Algorithms interpret data and alert system administrators to specific recommended actions to address potential problems. WDDA’s mission is to empower OEMs, system integrators, and IT professionals to better monitor and proactively manage supported storage devices to maintain optimal operations.
Three-year limited warranty – As an industry-leading hard drive manufacturer, Western Digital stands behind surveillance storage solutions with a 3-year limited warranty with every WD Purple drive.
TECHNICAL SPECIFICATIONS
 Model |  WD42PURZ |
 Performance | |
 Capacity |  4TB |
 Interface |  SATA |
 Interface Speed |  6 Gb/s |
 Form factor |  3.5-inch |
 Internal Transfer Rate (max) |  175 Mb/s |
 Cache |  256MB |
 Disk Speed |  5400 RPM |
 Advanced Format(AF) |  Yes |
 RoHS compliant |  Yes |
 Recording Technology |  CMR |
 Product Features | |
 Cameras supported |  Up to 64 HD1 |
 Drive Bays Supported |  16 |
 Tarnish resistant components |  Yes |
 Firmware Feature Name |  AllFrame |
 Reliability/Data Integrity | |
 Load/unload cycles |  3,00,000 |
 Annualized workload rating |  180TB/yr |
 Non-recoverable read errors per bit read |  1 in 1014 |
 MTBF |  1000000 hrs |
 Power Management ( Average power requirements) | |
 Read/Write |  3.3 W |
 Idle |  2.9 W |
 Standby and Sleep |  0.4 W |
 Environmental Specifications | |
 Operating Temperature |  0 to 65 Degrees C |
 Non-operating Temperature |  -40 to 70 Degrees C |
 Operating Shock (2 ms, read/write) |  30 Gs |
 Operating Shock (2 ms, read) |  65 Gs |
 Non-operating Shock (2 ms) |  350 Gs |
 Sound power level Idle |  23 dBA |
 Sound power level Seek (average) |  27 dBA |
 Physical Specs | |
 Dimensions ( H x L x W) |  1.028 x 5.787 x 4 (inch) |
 Weight (± 10%) |  570 g |
Specification: Western Digital Purple 4TB 5400RPM Surveillance Desktop Internal HDD
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