WD WD43PURZ Hard Disk Drive

Designed for dependable, always-on video recording, the Western Digital WD43PURZ Hard Disk Drive is a surveillance-optimized internal HDD that keeps your security footage safe and accessible. Built on WD's Purple product line, this 4TB drive gives security integrators and IT managers ample capacity to store weeks or months of high-resolution video, while the SATA/600 interface accelerates data transfers during burst recording events. A 256MB cache buffer smooths write performance across multiple camera streams, reducing dropped frames and ensuring consistent monitoring. The 3.5" form factor supports easy deployment in DVRs, NVRs, servers, and rack systems, making upgrades and replacements simple. Ideal for CCTV, remote monitoring, and enterprise surveillance applications, the WD43PURZ balances capacity, reliability, and performance for professional security installations. Upgrade your recording infrastructure with a purpose-built surveillance drive — deploy the WD43PURZ in your next monitoring or NVR project to improve retention and reliability.

• Optimized for 24/7 security and surveillance: engineered to deliver continuous, reliable video recording for DVRs and NVRs
• High-capacity 4TB storage to retain weeks of footage and thousands of high-resolution video files
• Fast SATA/600 interface for quicker write bursts and smoother video ingestion during peak recording
• 256MB cache buffer improves sustained performance for multi-stream monitoring and heavy write workloads
• Standard 3.5" form factor for straightforward installation in towers, servers, and surveillance enclosures