Western Digital 8TB WD Purple Surveillance Internal Hard Drive HDD – SATA 6 Gb/s, 256 MB Cache, 3.5″ – WD85PURZ

Engineered specifically for surveillance security systems.
Tuned for write-intensive, low bit-rate, high stream-count workloads typical to most surveillance applications.
AllFrame AI technology delivers additional enhancements and higher workload rate for AI-enabled recorders, systems and solutions
Supports up to 180 TB/yr workload rate (2) | (2) (Up to 360 TB/yr workload rate on drives that support AllFrame AI technology).
Support for more than eight bays.