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Silver 3.5-inch internal hard drive with SATA connectors and label showing WD Purple 4TB

Western Digital

Western Digital WD43PURZ 4TB internal hard drive

SKU CH-157B-AYM7M MPN WD43PURZ

4 TB SATA drive built for surveillance recording with 256 MB cache and 5400 RPM

  • InterfaceSATA 6.0Gb/s
  • Capacity4TB
  • RPM5400 RPM
  • Cache256MB
  • UsageFor Video Surveillance
  • Form Factor3.5"

Options 4TB 5400RPM

Le versioni barrate esistono, ma non sono disponibili qui.

  • Optimised for write-heavy surveillance workloads with WD AllFrame technology
  • Handles up to 180 TB per year workload rate for continuous recording
  • 256 MB cache improves multi-stream video capture performance
  • 4 TB capacity stores weeks of high-definition footage
  • 5 inch SATA 6.0 Gb/s interface fits standard desktop bays

Built for Surveillance Storage

The Western Digital WD43PURZ is a 4TB 3.5-inch internal hard drive engineered for video surveillance systems. It connects via a SATA 6.0Gb/s interface and spins at 5400 RPM with a 256MB cache. WD AllFrame technology optimises write-intensive, low bit-rate, high stream-count workloads typical of continuous recording environments.

Suits Recorders Not General PCs

This drive suits installers and system integrators deploying mainstream surveillance DVRs or NVRs that demand sustained sequential writes. It supports a workload rate of up to 180 TB per year. It is not intended for desktop operating systems, gaming libraries, or random-access workloads where higher RPM or lower latency are required.

Four Terabytes Continuous Write Headroom

The 4TB capacity provides ample space for multiple high-definition camera streams over extended retention periods. The firmware prioritises streaming write performance and frame-loss reduction over burst speed. Under heavy multi-stream loads the 5400 RPM spindle and SATA interface become the limiting factors for simultaneous playback or rapid scrubbing.

Punti di forza

  • Optimised for write-heavy surveillance workloads with WD AllFrame technology
  • Handles up to 180 TB per year workload rate for continuous recording
  • 256 MB cache improves multi-stream video capture performance
  • 4 TB capacity stores weeks of high-definition footage
  • 5 inch SATA 6.0 Gb/s interface fits standard desktop bays

Caratteristiche tecniche

BrandWD
ModelWD43PURZ
InterfaceSATA 6.0Gb/s
Capacity4TB
RPM5400 RPM
Cache256MB
UsageFor Video Surveillance
Form Factor3.5"
Height (maximum)26.1mm
Width (maximum)101.6mm
Length (maximum)147mm
Peso di spedizione0.57 kg
Dimensioni del pacco147 × 102 × 26 mm

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Domande su questo articolo

Do I need a SATA 6.0Gb/s port and a 3.5-inch drive bay to install the WD43PURZ?

Yes, the drive connects through a standard SATA 6.0Gb/s interface and fits a 3.5-inch bay with a maximum height of 26.1mm, width of 101.6mm and length of 147mm.

Will the WD43PURZ work alongside my older SATA 3Gb/s drives in the same system?

The drive is backward compatible with SATA 3Gb/s controllers and will operate at the lower link speed while sharing the same cable and power connections.

How can I confirm the WD43PURZ is running correctly after installation?

Check that the BIOS or OS reports a 4TB SATA device at 5400 RPM with 256MB cache, then monitor SMART attributes for the 180 TB/yr workload rating and verify AllFrame™ optimisation is active for surveillance streams.

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