Designed for desktops, all-in-one PCs, home servers, and entry-level direct-attached storage (DAS) devices, the 4TB BarraCuda SATA III 3.5" Internal HDD from Seagate offers a storage capacity of up to 4TB and operates using a SATA III 6 Gb/s interface and a 256MB cache, both of which help to ensure uninterrupted data transfers with a sustained data transfer rate of up to 190 MB/s. This 3.5" drive also features high levels of reliability, with 1 in 10¹⁴ non-recoverable read errors per bits read, 600,000 load/unload cycles, a workload limit of 55TB per year, and 2400 power-on hours per year. A limited 2-year warranty is included.