WD Purple drives are built for 24/7, always-on, high-definition security systems. With a high workload rate, WD Purple drives are optimized for surveillance systems. WD Purple surveillance storage also features WD's exclusive AllFrame 4K technology, so you can confidently create a security system tailored to the needs of your business. Surveillance you can trust With WD Purple surveillance storage, you have a drive engineered for high temperature, always-on surveillance systems so you can rely on quality video playback when you need it most. Whether you're protecting loved ones or monitoring your business, WD Purple offers performance you can trust.