Western Digital Purple 4TB 5400rpm 64MB Cache 3.5 Inch SATA3 Surveillance Hard Drive

Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 cameras, WD Purple drives are optimized for surveillance systems.

The Right Drive for the Job
• WD Purple drives have been engineered specifically for the extreme demands of high temperature, 24/7 surveillance systems.

Performance You Can Trust
• From a worldwide leader in the storage industry, WD Purple is engineered for quality video playback when you need it most.

Expand Your View to 64
• WD Purple drives are optimized to support up to 64 cameras, giving you flexibility to upgrade or expand your security system.

• Formatted capacity: 4TB
• Interface: SATA 6Gb/s
• Form factor: 3.5-inch
• RPM Class: 5400
• Advanced Format (AF): Yes
• RoHS compliant: Yes
• Cameras supported: Up to 64
• Maximum drive bays supported: 8+
• Tarnish resistant components: Yes

Performance:
• Interface transfer rate (max): Buffer to host: 6 Gb/s, Host to/from drive (sustained): 150 MB/s
• Cache: 64MB
• Performance Class: 5400 RPM

Reliability/Data Integrity:
• Load/unload cycles: 300,000
• Annualised workload rating: 180TB/yr
• Non-recoverable read errors per bits read: < 1 in 10^14
• Limited warranty: 3 Years

Power Management:
• Average power requirements: Read/Write: 5.1W, Idle: 4.5W, Standby and Sleep: 0.4W

Environmental Specifications:
• Temperature: Operating: 0 to 65'C Non-operating: -40 to 70'C
• Shock: Operating (2 ms, read/write): 30Gs Operating (2 ms, read): 65Gs Non-operating (2 ms): 250Gs
• Acoustics (dBA): Idle: 25 Seek (average): 26

Physical Dimensions
• Dimensions (H x L x W): 26.1 x 147 x 101.6 mm
• Weight: 680 g