The Western Digital 6TB WD Purple Surveillance Internal Hard Drive is expertly crafted for mainstream surveillance systems. Its powerful WD AllFrame technology optimizes write-intensive, low bit-rate, and high stream-count workloads, making it perfect for surveillance applications. With a workload rate of up to 180 TB/year and support for up to 16 bays, this hard drive is a reliable choice for any surveillance setup. Plus, its tarnish-resistant components ensure durability for capacities 3TB and higher.