The Western Digital 500GB WD Purple Surveillance Hard Drive is a 3.5-inch internal storage drive built specifically for 24/7 continuous video surveillance systems.
Key Specifications & Features
Capacity: 500GB (Model typically designated as WD05PURZ)
Interface: SATA 6 Gb/s
Cache: 64MB
Rotation Speed: 5400 RPM class
Form Factor: 3.5-inch
Workload Rating: Up to 180TB/year
Camera Support: Optimized to support up to 32 to 64 HD cameras simultaneously.