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3.5 inch internal hard drive, silver metal casing with green label, SATA connectors visible

Western Digital

Western Digital WD42PURZProduct Purple 4 TB 3.5" SATA 5400 rpm 256 MB

SKU CH-D9DC-3R8NQ MPN WD42PURZProduct

Designed for continuous video-surveillance recording with 4 TB capacity and 256 MB cache

  • NAND Flash Memory TypeHard Drive
  • Designed for video surveillance systems and NVRs
  • 4 TB capacity with CMR recording technology
  • 256 MB buffer supports smooth multi-stream recording
  • SATA 600 interface in 3.5 inch form factor

Surveillance Storage 4 TB

The Western Digital Purple WD42PURZ is a 4 TB internal hard drive built for continuous video recording. It uses conventional magnetic recording with a 5400 rpm spindle speed and a 256 MB buffer. The 3.5 inch form factor connects through a SATA 600 interface. This drive targets network video recorders and surveillance systems that write data around the clock.

Not for boot or performance workloads

The firmware is tuned for sequential streams rather than random access, so it suits constant write patterns from multiple cameras. Builders who need an operating-system drive or low-latency scratch space should look at something else. Environments that demand higher spindle speeds or a different interface will not be served by this model.

Punti di forza

  • Designed for video surveillance systems and NVRs
  • 4 TB capacity with CMR recording technology
  • 256 MB buffer supports smooth multi-stream recording
  • SATA 600 interface in 3.5 inch form factor

Caratteristiche tecniche

BrandWestern Digital
NAND Flash Memory TypeHard Drive

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