WD Purple 3.5" 4TB, 5400 RPM, 256MB, SATA III Hard Drive for Surveillance

This internal hard drive is specifically engineered for 24/7, always-on surveillance systems. It incorporates AllFrame firmware technology, which works in conjunction with ATA streaming to reduce frame loss and video interruption. This design addresses issues like pixelation that can occur when standard desktop drives are used for security recording. The drive is built to operate reliably in environments that support up to eight drives and as many as 32 high-definition cameras.

The WD Purple drive operates at a spindle speed of 5400 RPM and is equipped with a 256 MB buffer to manage continuous data streams effectively. It is rated for a workload of up to 180 TB per year, providing a durable solution for constant video writing. With a Mean Time Between Failures (MTBF) of 1,000,000 hours, the drive is constructed for long-term deployment in security applications. It also includes support for S.M.A.R.T. monitoring and end-to-end data protection to maintain data integrity.

• 4 TB storage capacity
• 3.5-inch form factor
• SATA III interface with a 6 Gbit/s transfer rate
• 5400 RPM spindle speed
• 256 MB buffer size
• Supports workloads up to 180 TB per year
• 1,000,000-hour Mean Time Between Failures (MTBF)
• Optimized for systems with up to 32 HD cameras
• Engineered for 24/7, always-on operation
• Features S.M.A.R.T. monitoring and end-to-end data protection
• Dimensions of 101.6 x 147 x 26.1 mm