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Purple 3.5-inch SATA internal hard drive

Western Digital

Western Digital WD33PURZ 3 TB 3.5" SATA 5400 rpm internal hard drive

SKU CH-XX75-ZYY17

3 TB 3.5" SATA internal hard drive built for 24/7 surveillance with 256 MB cache and 180 TB/year workload rating

  • InterfaceSATA 6.0Gb/s
  • Capacity3TB
  • RPM5400 RPM
  • Cache256MB
  • UsageFor Video Surveillance
  • Form Factor3.5"
  • Engineered for 24/7 surveillance workloads
  • AllFrame technology reduces frame loss during video capture
  • 180 TB/year workload rating supports continuous recording
  • 256 MB cache helps sustain streaming performance
  • 5" SATA 6.0 Gb/s interface fits standard NVR bays

Engineered for 24/7 surveillance recording

This WD Purple 3.5-inch internal hard drive is purpose-built for network video recorders and DVR systems that write continuously. It targets installers and system integrators who need dependable storage for multiple high-definition camera streams rather than general desktop workloads.

Sustained write workload rated at 180 TB per year

The drive handles the constant sequential writes of surveillance footage without the thermal throttling or vibration sensitivity seen in standard desktop units. All Frame technology reduces frame loss during heavy multi-stream recording so playback remains smooth over long retention periods.

3.5-inch form factor with SATA 6.0 Gb/s interface

Standard SATA data and power connectors allow drop-in installation into existing NVR bays or external enclosures. The 5400 rpm spindle and 256 MB cache keep operating temperatures manageable in always-on chassis while the purple label identifies the drive class at a glance.

Points forts

  • Engineered for 24/7 surveillance workloads
  • AllFrame technology reduces frame loss during video capture
  • 180 TB/year workload rating supports continuous recording
  • 256 MB cache helps sustain streaming performance
  • 5" SATA 6.0 Gb/s interface fits standard NVR bays

Caractéristiques

BrandWD
ModelWD33PURZ
InterfaceSATA 6.0Gb/s
Capacity3TB
RPM5400 RPM
Cache256MB
UsageFor Video Surveillance
Form Factor3.5"

Questions sur cet article

How much power does the 5400 rpm SATA 6.0Gb/s drive draw during continuous 24/7 recording?

The drive is engineered for non-stop surveillance workloads and tested to handle up to 180TB per year in NVR environments.

Does the 3.5" SATA 6.0Gb/s drive need any special controller or cabling beyond a standard motherboard port?

It connects to any standard SATA 6.0Gb/s port using ordinary data and power cables; no extra controller is required.

Will the 256MB cache SATA drive work reliably alongside older 5400 rpm desktop drives in the same enclosure?

Yes, it uses the same SATA interface and form factor, so it operates alongside legacy drives without compatibility issues.

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