Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5 inch - WD43PURZ ^Sale

Engineered for mainstream surveillance systems
• WD AllFrame technology delivers optimizations for write-intensive, low bit-rate, high stream-count workloads typical to mainstream surveillance applications
• Supports up to 180 TB/yr workload rate(3)
• (3) Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ? (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
• Support for up to 16 bays(7)
• (7) 1TB through 2TB support up to eight bays; 3TB and above support up to 16 bays.
• Tarnish-resistant components(6)
• (6) Tarnish resistant components for capacities 3TB and higher.