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Silver 3.5-inch internal hard drive with green label

Western Digital

Western Digital WD142PURP 14TB 7200 RPM 512MB SATA 3.5" internal hard drive

SKU CH-2X3V-8NMH2 MPN WD142PURP

A 14 TB 3.5-inch SATA drive built for 24/7 video surveillance with 7200 RPM, 512 MB cache, CMR recording, and AllFrame AI technology

  • InterfaceSATA
  • Capacity14TB
  • NAND Flash Memory TypeHard Drive
  • Recording TechnologyCMR
  • RPM7200 RPM
  • Cache512MB

Options 14TB

  • Built for 24/7 smart video solutions with up to 2.5 million hours MTBF
  • Handles up to 64 single-stream HD cameras with AllFrame AI technology
  • Sustains heavy workloads rated up to 550TB per year
  • 14TB capacity using CMR recording at 7200 RPM with 512MB cache
  • Proactive storage management via WDDA for reliable operation

Purpose-built surveillance storage

The WD Purple Pro WD142PURP is a 14TB 3.5-inch internal hard drive engineered for advanced smart video recorders, appliances and servers. It uses CMR recording at 7200 RPM with a 512MB cache and a SATA interface. AllFrame AI technology improves ATA streaming to reduce frame loss during 24/7 operation.

Upgrade from standard desktop drives

Desktop-class drives lack the workload rating and firmware optimisation required for continuous multi-stream video capture. This drive supports up to 64 single-stream HD cameras and handles many modern smart cameras that transmit multiple streams. The 550TB-per-year workload rating and 2.5-million-hour MTBF justify the step up when recording never stops.

Capacity and headroom

Fourteen terabytes provides substantial space for high-resolution footage and AI metadata generated by always-on analytics. OptiNAND technology and proactive storage management with WDDA help maintain consistent write performance under heavy sustained loads. The drive reaches its practical limit when camera counts or stream bitrates exceed the rated 64-stream design target or the annual workload ceiling.

Highlights

  • Built for 24/7 smart video solutions with up to 2.5 million hours MTBF
  • Handles up to 64 single-stream HD cameras with AllFrame AI technology
  • Sustains heavy workloads rated up to 550TB per year
  • 14TB capacity using CMR recording at 7200 RPM with 512MB cache
  • Proactive storage management via WDDA for reliable operation

Specifications

BrandWD
SeriesPurple Pro
ModelWD142PURP
InterfaceSATA
Capacity14TB
NAND Flash Memory TypeHard Drive
Recording TechnologyCMR
RPM7200 RPM
Cache512MB
FeaturesDesigned for reliable operation in advanced high-performance smart video solutions
Proactive storage management with WDDA
Western Digital's exclusive AllFrame AI technology
UsageFor Video Surveillance
Form Factor3.5"
Shipping weight0.73 kg
Package size270 × 223 × 163 mm

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Questions about this item

Will this 3.5" drive fit a standard desktop drive bay?

Yes, the WD142PURP uses the standard 3.5-inch form factor and SATA interface, so it mounts in any desktop bay with matching screw holes and connects via a regular SATA data and power cable.

What is the most common mistake when installing this SATA drive?

Forgetting to connect both the SATA data cable to the motherboard and the SATA power cable from the power supply; the drive will not spin up without both connections seated firmly.

How long is the drive rated to run in a 24/7 surveillance system?

The WD142PURP carries a 2.5 million hour MTBF rating and a 550TB per year workload rating, so it is engineered for continuous operation in always-on video recording environments.

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