Western Digital WD Purple WD85PURZ 8TB 3.5" Internal Surveillance HDD, 256MB Cache, CMR

Purpose-built for video surveillance, the Western Digital WD Purple (model WD85PURZ) is an 8TB 3.5" internal hard drive that uses CMR recording and includes a 256MB cache. It delivers dependable storage performance tailored to continuous footage capture and heavy write workloads. Supports expansion to 64 single-stream HD cameras, enabling broader monitoring coverage. Designed for easy integration into existing surveillance systems, this drive focuses on reliable, consistent operation—precisely what you need for camera deployments that demand performance you can trust.