Western Digital Purple Surveillance 4TB

Western Digital Purple Surveillance 4TB SATA 6 Gb/s 256 MB Cache 3.5" WD43PURZ

Western Digital Purple Surveillance 4TB SATA 6 Gb/s 256 MB Cache 3.5" WD43PURZ

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  • Engineered for mainstream surveillance systems
  • WD AllFrame technology delivers optimizations for write-intensive, low bit-rate, high stream-count workloads typical to mainstream surveillance applications
  • Supports up to 180 TB/yr workload rate(3) | (3) Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
  • Support for up to 16 bays(7) | (7) 1TB through 2TB support up to eight bays; 3TB and above support up to 16 bays.
  • Tarnish-resistant components(6) | (6) Tarnish resistant components for capacities 3TB and higher.

Specifications Overview

Model WD43PURZ
Release Date May 2023

* First availability for purchase, it may not correspond to the actual market launch date.

Capacity 4000 GB
Cache 256MB
RPM 5400
Interface SATA 6 Gb/s
Form Factor 3.5"


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