WD Purple 4TB Surveillance Hard Disk Drive – 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD40PURZ

**WD Purple 4TB Surveillance Hard Disk Drive (WD40PURZ)**
Optimized for 24/7 surveillance systems, this 3.5-inch 4TB HDD delivers reliable performance with a 5400 RPM class, SATA 6Gb/s interface, and 64MB cache. Built for high-write workloads, it supports up to 64 cameras simultaneously using AllFrame technology to minimize frame loss and ensure smooth video playback. Engineered for durability in always-on environments, it features vibration resistance for multi-drive setups and low power consumption. Ideal for home security or enterprise surveillance, its surveillance-focused firmware ensures data integrity and compatibility with leading NVRs. A cost-effective, purpose-built solution for uninterrupted recording and long-term reliability.