The Western Digital WD Purple Pro WD241PURP 24TB surveillance hard drive delivers a massive 24TB capacity built specifically for 24/7, high-definition security systems utilising deep-learning analytics. It provides the high-density storage required by modern enterprise-class video recorders to retain weeks of critical footage.

Engineered for up to 64 HD cameras and 32 AI streams

Modern enterprise surveillance systems require more than just raw storage; they need the ability to process multiple data streams simultaneously. This drive supports up to 64 single-stream high-definition cameras alongside an additional 32 AI streams for deep-learning analytics. Equipped with AllFrame AI technology, the drive actively manages write operations to reduce frame loss, improve overall video playback, and prevent pixelation or interruptions during critical review.

High-speed sustained transfers with OptiNAND efficiency

The WD Purple Pro WD241PURP features a fast 7200 RPM spindle speed and a large 512MB cache, allowing it to achieve sustained transfer rates of up to 287 MB/s. This performance is enhanced by Western Digital’s OptiNAND technology, which integrates flash-based embedded flash drives with traditional spinning media. This integration optimises drive metadata organisation and power management, ensuring rapid data retrieval and consistent write performance under heavy multi-stream workloads.

Enterprise-grade endurance for continuous 24/7 operation

Built to withstand the relentless demands of constant write cycles, this drive utilizes Conventional Magnetic Recording (CMR) technology. It features a heavy-duty workload rating of up to 550 TB per year, which is up to three times the rating of standard surveillance-class drives. With a Mean Time Between Failures (MTBF) of 2,500,000 hours and a 5-year limited warranty, it is engineered to withstand the thermal and physical stresses of multi-bay storage arrays.

Active health monitoring and optimised power efficiency

To protect critical footage and maintain system uptime, the drive includes Western Digital Device Analytics (WDDA). This system provides real-time health monitoring, temperature tracking, and preventative analysis to compatible network video recorders (NVRs), allowing administrators to address potential issues before they cause data loss. The drive operates efficiently across a wide temperature range of 0°C to 65°C, with power consumption optimised at 6.2 W during active operations, 5.7 W at idle, and just 1.1 W in standby or sleep modes.

Technical Specifications

Capacity	24 TB
Recording Technology	CMR
Spindle Speed	7200 RPM
Cache	512 MB
Sustained Transfer Rate	287 MB/s
Workload Rating	550 TB/year
Mean Time Between Failures (MTBF)	2,500,000 hours
Operating Temperature Range	0°C to 65°C
Active Power Consumption	6.2 W
Warranty	5-Year Limited Warranty