WD Purple 3.5" 1TB, 5400 RPM, 64MB, SATA III Hard Drive for Surveillance

This 3.5-inch internal hard drive is designed for use in surveillance DVR and NVR systems that require continuous operation. It is engineered for 24/7 recording and incorporates AllFrame technology to help minimize frame loss during data-intensive video capture. The drive is rated for a workload of up to 180 TB per year, addressing the high write demands typical of modern surveillance environments. It is built to support simultaneous recording from as many as 64 single-stream HD cameras, providing capacity for comprehensive coverage.

The drive connects via a SATA III 6 Gbit/s interface and operates with a spindle speed of 5400 RPM. It delivers sequential read and write speeds of up to 110 MB/s, supported by a 64 MB cache for efficient data buffering. For long-term reliability, it has a Mean Time Between Failures (MTBF) of 1 million hours and includes S.M.A.R.T. technology for proactive drive health monitoring. Its design also considers operational efficiency, with low power consumption and an idle noise level of 21 dB.

• 1 TB storage capacity
• 3.5-inch form factor
• SATA III 6 Gbit/s interface
• 5400 RPM spindle speed
• 64 MB cache size
• 180 TB/year workload rating
• Optimized for surveillance DVR and NVR systems
• Engineered for 24/7 operation
• 1 million hours Mean Time Between Failures (MTBF)
• Supports S.M.A.R.T. drive monitoring
• Dimensions of 101.6 x 147.07 x 26.16 mm