The Seagate Surveillance HDD SkyHawk 3.5-inch is a specialized hard drive designed for 24/7 surveillance systems, providing reliable storage for high-resolution video recordings. This model, with part number ST4000VX013, has a capacity of 4 TB, allowing for longer recording periods without frequent data overwriting. It is intended for use in network video recorders (NVR) and digital video recorders (DVR), supporting up to 64 cameras and workloads of up to 180 TB per year. The hard drive integrates SkyHawk Health Management to monitor data loss and prevent it by alerting users to potential issues. With a speed of 5900 RPM and a SATA 6 Gb/s interface, it ensures smooth data transfer and consistent performance in demanding environments. It includes support for Seagate's ImagePerfect firmware, which minimizes image loss and provides clear, sequential video playback. The hard drive operates quietly with an average noise level of 2.4 Bels (idle) and is designed to handle vibrations in multi-drive systems. Its dimensions are 147 mm in width, 101.6 mm in length, and 26.1 mm in height, with a weight of approximately 450 g. It requires a standard 3.5-inch mounting space (89 mm) for installation and is compatible with most surveillance configurations. This hard drive is ideal for security applications in homes, businesses, and public spaces, focusing on durability and data integrity for continuous operation.