WD Purple Pro 3.5" 26TB, 7200 RPM, 512MB, 550 WRL, SATA III Hard Drive, for Surveillance

The WD Purple Pro HDD is a 3.5-inch internal drive with 26 TB of storage, engineered for professional surveillance systems and video analytics servers. It is constructed for continuous 24/7 operation within demanding, always-on environments such as AI-enabled network video recorders and deep learning appliances. The drive's firmware and hardware are optimized to handle high-stream-count recording from multiple cameras simultaneously. It functions effectively in both standalone recorders and multi-drive RAID or JBOD configurations.

This model operates at a 7200 RPM spindle speed and is equipped with a 512 MB cache to manage data flow from intensive workloads. It utilizes OptiNAND technology and AllFrame AI capabilities to help minimize frame loss and improve video playback reliability. Integrated Rotational Vibration (RV) sensors contribute to stable performance in multi-bay enclosures by mitigating the effects of vibration from adjacent drives. These components work together to provide the data integrity and endurance required for modern surveillance installations.

• 26 TB storage capacity
• 3.5-inch form factor
• SATA interface with a 6 Gbit/s transfer rate
• 7200 RPM spindle speed
• 512 MB cache buffer
• Sustained data transfer rate up to 287 MB/s
• Workload rating of 550 TB per year
• 2.5 million-hour Mean Time Between Failures (MTBF)
• Features S.M.A.R.T. monitoring support
• Dimensions: 101.6 x 147 x 26.1 mm
• Weight: 690 g