3.5 4TB SkyHawk Surveillance HDD from Seagate The 4TB Seagate SkyHawk is a high-quality surveillance HDD that delivers incredible performance thanks to its easy to use 3.5 inch form factor that is just 26.1mm in height the drive runs at 5900 rpm the SkyHawk\'s technical highlight is it's 6Gb/s interface which is the latest SATA III standard. This drive in particular has a storage capacity of 4000GB with a 64MB Cache. This drive also has a workload of up to 180TB/year. Versatile Fast and Dependable Optimised for DVRs and NVRs SkyHawk surveillance drives are tuned for 24x7 workloads in capacities up to 10TB. Equipped with enhanced ImagePerfect firmware SkyHawk helps to minimise dropped frames and downtime with a workload rating 3x that of a desktop drive and is ready to record up to 90% of the time while supporting up to 64 HD cameras. Innovative Protection The innovative ImagePerfect firmware enables smooth clear video streaming for always-on 24/7 surveillance environments — helping to ensure your business can always have a formidable layer of protection. Give yourself the ultimate peace of mind with SkyHawk surveillance drives and never miss a frame even in harsh environments. SkyHawk's extreme workload rating low power consumption and NVR ready design can improve long-term drive reliability. Reliable Performance SkyHawk is built to scale with your needs and reliably performs in multi-drive systems. Multi-drive surveillance systems can rely on the SkyHawk's RAID-optimised hardware keeping drives and systems in the field longer..