Western Digital - WD3000F9YZ 3 TB 3.5" Internal Hard Drive

WD Purple drives are designed to meet the challenges of 24x7 video surveillance recording. These drives are engineered specifically for surveillance to help withstand the elevated heat fluctuations and equipment vibrations within NVR environments. An average desktop drive is built to run for only short intervals, not the harsh 24/7 always-on environment of a high-definition surveillance system. With WD Purple drives, you get reliable, surveillance-class storage that’s tested for compatibility in a wide range of security systems. Exclusive WD AllFrame technology helps reduce frame loss and improve overall video playback.

WD Red Plus drives are designed to handle workloads of power users and small to medium business NAS environments. WD Red Plus drives deliver the speed and capacity required to store, protect and share growing amounts of data in mid-sized RAID-optimized NAS systems with increased power efficiency.

The WD Black 4TB 3.5" Internal Hard Drive (WD4003FZEX) is designed for high-performance computing, offering substantial storage capacity and fast data transfer rates. With a 7200 RPM rotational speed and a 64 MB cache, it ensures efficient data access. The drive is built to endure operating shocks up to 30 Gs and non-operating shocks up to 300 Gs, while maintaining quiet operation with noise levels averaging 29 dBA during idle and 34 dBA during seek modes.