The WD Purple 4TB is a specialized 3.5-inch SATA surveillance hard drive designed for continuous 24/7 operation in DVR/NVR systems. With WD AllFrame technology, this hard drive ensures a minimal frame loss during high-stream, write-intensive video workloads.

Technical Specifications:

• Capacity: 4TB
• Cache: 128MB
• Interface: SATA 6 Gb/s
• Sustained Transfer Rate: Up to 180 MB/s
• Rotational Speed: 5400 RPM class
• Recording Technology: CMR
• Workload Rating: Up to 180 TB/year
• Camera Support: Up to 64 single-stream HD cameras
• Drive Bays Supported: Up to 16
• Reliability Features: 300,000 load/unload cycles
• Firmware: AllFrame technology

With a focus on reliability, the WD Purple hard drive comes with features like tarnish-resistant components and low non-recoverable read errors. Additionally, it operates efficiently at a temperature range of 0°C to 65°C. A 3-year limited warranty further ensures peace of mind.