HDD Western Digital Purple 2TB 

2TBSurveillance Hard Drives WD Purple drives are built for 24/7,

always-on, high-definition  security systems. With a supported workload rate1,

of up to 180 TB/yr and support for up to 64 cameras, WD Purple drives are op  timized for surveillance systems.

WD Purple surveillance storage also comes with WD’s exclusive AllFrame 4K™  technology,

so you can confidently create a security system  tailored to the needs of your business.