Our security-grade SATA hard drives are engineered for continuous operation, providing weeks of video storage for your security DVR. The hard drives are rigorously tested and built to withstand the demands of 24/7 surveillance for security around-the-clock . The security-optimized hard drives operate at a lower temperature, consume less power and provide greater storage capacity than standard hard drives. Security-grade hard drives also provide greater storage capacity and smoother video streaming with less vibration. Need help selecting a hard drive that meets your specific security needs? Our trained security experts can help. Call Security Cameras Direct today at 877-640-4647!