WD 4TB Purple Surveillance HDD

WD Purple 4TB Surveillance Hard Drive – Specifications

Brand: Western Digital (WD)

Capacity: 4 TB

Form Factor: 3.5 inch

Interface: SATA III (6 Gb/s)

Cache (Buffer): 256 MB

RPM Class: 5400 RPM

Recording Technology: CMR (Conventional Magnetic Recording)

Sustained Data Transfer Rate: Up to 175 MB/s

Workload Rating: Up to 180 TB per year

MTBF (Mean Time Between Failures): 1 million hours

Technology: AllFrame™ (reduces frame loss and improves video playback)

Optimized For: 24/7 surveillance DVR and NVR systems

Camera Support: Up to 64 HD cameras

Operating Temperature: 0 °C to 65 °C (32 °F to 149 °F)

Dimensions: 147 × 101.6 × 26.1 mm (L × W × H)

Power Consumption: ~3.9 W (read/write), ~3.2 W (idle)

Noise Level: 23 dBA (idle) / 24 dBA (seek)

Vibration Tolerance: 0.7 G (operating), 1.0 G (non-operating)

Weight: 570 g (approx.)