Description
Western Digital 4TB WD Purple Surveillance 3.5-Inch SATA 6Gb/s Internal Hard Drive – WD42PURZ
4TB 3.5″ Surveillance-Class HDD for CCTV & NVR Systems
The Western Digital WD42PURZ 4TB WD Purple is a surveillance-optimized hard drive engineered specifically for 24/7 security systems. Designed for DVR and NVR environments, this 3.5-inch SATA drive delivers reliable performance for continuous video recording workloads.
Built with AllFrame™ technology, WD Purple drives help reduce frame loss, improve video playback quality, and support high stream-count surveillance systems.
Designed for Surveillance Systems
Unlike standard desktop drives, WD Purple drives are built to handle:
Continuous 24×7 operation
Elevated temperatures in NVR/DVR systems
Vibration in multi-bay surveillance setups
High-definition video recording workloads
Key Features
4TB Storage Capacity
3.5-Inch Form Factor
SATA 6Gb/s Interface
Surveillance-Optimized Firmware
AllFrame™ Technology
Supports Up to 180TB/Year Workload Rate
Supports Up to 16 Drive Bays (4TB and Above)
Tarnish-Resistant Components
Optimized for Write-Intensive Workloads
Surveillance systems require constant writing of video data. WD Purple drives are optimized for low bit-rate, high stream-count applications typical in security systems, ensuring smoother video capture and playback.
Reliable 24/7 Operation
Engineered for always-on environments, WD Purple drives are tested for compatibility with a wide range of surveillance systems and security setups.
Ideal Applications
CCTV Systems
DVR Recorders
NVR Systems
Home & Business Surveillance
Multi-Camera Security Installations
Technical Specifications
Brand
Western Digital
Series
WD Purple
Model
WD42PURZ
Capacity
4TB
Form Factor
3.5-Inch
Interface
SATA 6Gb/s
Drive Type
Mechanical Hard Disk Drive (HDD)
Workload Rating
Up to 180TB per year
Installation Type
Internal
Color
Purple
USD 