Seagate SkyHawk ST4000VX016 is a 4 TB hard drive designed for video surveillance recording in NVR and DVR systems.
Its SATA 6 Gb/s interface and CMR recording technology support continuous video workloads. Seagate specifies support for up to 64 cameras and up to 16 drive bays, while built-in rotational vibration sensors help the drive maintain performance in multi-bay systems.
The model has a 256 MB cache and a maximum sustained transfer rate of 180 MB/s. It is designed for always-on surveillance workloads of up to 180 TB per year, making it suited to recording and storing ongoing camera footage.