The WD Purple Surveillance 2TB hard drive is engineered specifically for high-definition video surveillance systems, providing reliable storage that can withstand the rigors of continuous operation. With a SATA 6Gb/s interface and a 64MB buffer, this 3.5" internal hard drive is optimized for 24/7 use, making it ideal for NVR environments. It supports up to 64 high-definition cameras and features exclusive AllFrame technology to reduce frame loss and enhance video playback. The drive is built to handle the heat and vibrations typical in surveillance setups, ensuring data integrity and performance over time.