WD WD42PURX Western Digital 4TB Purple Surveillance Hard Drive

Uncompromising Storage Built for 24/7 Security & Surveillance Systems

The WD Purple 4TB Surveillance Hard Drive (WD42PURX) is engineered specifically for high-definition, always-on security surveillance systems. Designed to withstand the heat fluctuations and equipment vibrations within NVR and DVR environments, this 3.5-inch internal hard drive delivers unmatched reliability and performance for continuous video monitoring.

Powered by Western Digital's exclusive AllFrame™ technology, the WD Purple drive improves ATA streaming to reduce frame loss, eliminate video pixilation, and ensure smooth playback. With support for up to 64 single-stream HD cameras and an annual workload rating of up to 180 TB/year, it provides the storage foundation required for modern, scalable security setups.

Key Features

• Western Digital AllFrame™ Technology: Helps reduce dropped frames, improves video recording efficiency, and enhances playback quality across security systems.
• 24/7 Always-On Reliability: Engineered specifically for high-temperature, continuous-operation surveillance systems to guard against data loss.
• Multi-Camera HD Streaming: Optimized to seamlessly support up to 64 HD surveillance cameras per drive.
• High Workload Rating: Built to handle workloads up to 180 TB/year—up to 3 times higher than standard desktop-class hard drives.
• Generous 256MB Cache: High-speed cache memory combined with SATA 6 Gb/s interface ensures fast data processing and write speeds.
• Broad Compatibility: Fully compatible with leading surveillance enclosure and chipset manufacturers for easy DVR/NVR integration.

Technical Specifications