Designed for use in 1-8 bay NAS systems within home, SOHO, and small business environments, the 3TB IronWolf 5900 rpm SATA III 3.5" Internal NAS HDD from Seagate is built to withstand 24x7 operations, or up to 180TB per year / 8760 hours per year. This 3TB drive has been equipped with a SATA III 6 Gb/s interface, a rotational speed of 5900 rpm, a 3.5" form factor, and a 64MB cache, providing users with an ample storage capacity and data transfer speeds of up to 180 MB/s. The IronWolf also has an MTBF rating of 1.0 million hours, a workload rate of up to 180TB per year, a non-recoverable read error rate of 1 per 1014, and 600,000 load/unload cycles. Protection is provided by a limited 3-year warranty.