Engineered for compatibilityWD Purple surveillance hard drives are built for compatibility with industry-leading chassis and chip set manufacturers for seamless integration into your new or existing video surveillance system. | Optimized performance for up to 64 camerasWith support for up to 64 surveillance cameras per hard drive, WD Purple gives you the flexibility to upgrade and expand your security system in the future. | Surveillance storage for peace-of-mindWD Purple Surveillance hard drives are designed for high temperature, always-on, surveillance security systems to help ensure reliability and quality video play back when you need it most. |