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Silver 3.5-inch bare SATA hard drive, rectangular metal casing with visible circuit board underside

Western Digital

Western Digital WD50PURX 5TB 3.5" SATA internal hard drive

SKU CH-AZCQ-82YAS MPN WD50PURX

5TB 3.5" SATA surveillance drive rated for 180TB/year workloads and up to 32 cameras

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity5TB
  • RPM5400 RPM
  • Cache64MB
  • FeaturesWD Purple surveillance storage is built for 24/7 always-on s

Options 5TB

  • Engineered for 24/7 surveillance workloads up to 180TB/year
  • AllFrame technology reduces video interruptions across up to 32 cameras
  • 5TB capacity on SATA 6.0Gb/s interface with 64MB cache
  • 5400 RPM 3.5" form factor fits standard desktop drive bays
  • Low power consumption optimised for multi-drive arrays up to eight bays

Surveillance-class 5TB storage

The WD Purple WD50PURX is a 5TB 3.5" internal hard drive built for 24/7 surveillance recording. It connects via SATA 6.0Gb/s, spins at 5400 RPM and includes 64MB cache. AllFrame technology works with ATA streaming to reduce frame loss and pixel errors in high-definition security systems.

Suits multi-camera NVR builds.

This drive supports up to 32 cameras and up to eight drives in a single system, with a workload rating of 180TB per year. Write-intensive, low-bitrate streaming is prioritised over random-access performance. Buyers needing low-latency OS boots or frequent small-file access should choose a different drive class.

180TB/year workload rating

The 180TB annual workload rating is the single figure that tells you whether this drive matches your recording volume. If your planned camera count, resolution and retention period stay within that budget, the WD50PURX is the right part; if the expected writes exceed it, a higher-rated surveillance drive is required.

Highlights

  • Engineered for 24/7 surveillance workloads up to 180TB/year
  • AllFrame technology reduces video interruptions across up to 32 cameras
  • 5TB capacity on SATA 6.0Gb/s interface with 64MB cache
  • 5400 RPM 3.5" form factor fits standard desktop drive bays
  • Low power consumption optimised for multi-drive arrays up to eight bays

Specifications

BrandWD
SeriesPurple
ModelWD50PURX
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity5TB
RPM5400 RPM
Cache64MB
FeaturesWD Purple surveillance storage is built for 24/7 always-on surveillance in high-definition security systems that use up to eight hard drives and up to 32 cameras. Exclusive AllFrame technology works with ATA streaming to reduce error pixilation and video interruptions that occur when desktop hard drives are incorrectly used as storage in security systems.
Desktop drives vs.surveillance-class storage
Surveillance storage for peace-of-mind
Improve performance with AllFrame
Engineered for compatibility
Optimized performance for up to 32 HD cameras
Lower power consumption
3-year limited
Form Factor3.5"
Height (maximum)26.1mm
Width (maximum)101.6mm
Length (maximum)147mm
Shipping weight0.72 kg
Package size146 × 102 × 25 mm

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Questions about this item

How long is the 5TB Purple drive rated to last under a 180TB yearly workload?

The drive carries a 3-year limited warranty and is engineered for an 180TB per year workload rate, so it is designed to handle that sustained write load throughout the warranty period.

What sustained write limit appears first when recording from 32 cameras 24/7?

The 180TB per year workload rating is the primary limit; at 5400 RPM with 64MB cache the drive prioritises write operations to keep up with high stream-count surveillance recording.

How much heat and noise does the 5400 RPM 5TB drive produce in an always-on NVR?

The Purple series is built for lower power consumption in 24/7 operation; at 5400 RPM it runs cooler and quieter than desktop drives while supporting up to eight drives in a single enclosure.

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