Hard drive 12 TB, 3.5" SATA

Western Digital WD Purple Pro WD122PURP is a 12 TB hard drive for smart video surveillance, video recording and analytics systems. Its 3.5-inch form factor and SATA interface are suited to compatible desktop-class recorders and storage systems.

The drive uses CMR recording, spins at 7200 RPM and has 512 MB of cache. Western Digital’s AllFrame AI technology is designed to handle video, image and metadata streams while helping reduce dropped video frames during capture.

The model supports up to 64 HD cameras with a single stream per camera. Its specified workload rating is up to 550 TB per year, for surveillance deployments with sustained recording and analytics workloads.