The Western Digital WD Purple 8TB Surveillance Hard Drive (Model WD85PURZ) is engineered specifically for mainstream video surveillance systems that require reliable, 24/7 continuous recording. Featuring WD AllFrame firmware technology, this drive reduces frame loss and enhances video playback quality in high stream-count DVR and NVR systems.

With an 8TB capacity housed in a robust 3.5" form factor, the WD Purple supports sustained transfer speeds up to 215 MB/s via a SATA 6 Gb/s interface and features a large 256MB cache buffer to optimize write-intensive, low bit-rate video workloads. Designed to withstand elevated heat and vibration in multi-drive environments, it supports a demanding workload rating of up to 180 TB/year and can reliably serve surveillance systems with up to 16 drive bays and 64 HD camera streams.

This HDD employs Conventional Magnetic Recording (CMR) technology for durable and reliable data storage, tested for broad compatibility across common security system setups. It carries multiple international certifications ensuring safety and quality. The drive is backed by a 3-year limited warranty, making it a trusted choice for professional and commercial surveillance applications.