The Internal 10Tb WD Purple 3.5" is the perfect hard drive for surveillance systems, supporting up to 64 cameras. With a 7200 RPM class and a 256MB cache, it enables fast and smooth video streaming. Its AllFrame AI technology ensures reduced video frame loss and improved playback performance. Additionally, it is designed for 24/7 operation and comes with a 3-year limited warranty for added peace of mind. With its advanced features, this hard drive is a must-have for any surveillance system.