Tthe 6TB Red 5400 rpm SATA III 3.5" Internal NAS HDD Retail Kit from WD is a mainstream option for SoHo (Small Office and Home Office) applications in 1- to 8-bay systems with load to moderate workloads and extended idle times, excluding ZFS. Engineered to handle increased workloads, this 6TB drive operates using a SATA III 6 Gb/s interface, a 256MB cache, and a rotational speed of 5400 rpm, all of which help to ensure uninterrupted data transfers with a sustained rate of up to 180 MB/s. This drive also features high levels of reliability, with 600,000 load/unload cycles, <1 in 1014 non-recoverable read errors per bits read, error recovery controls, and 1,000,000 hours MTBF for 1-8 bay NAS systems. Also built into this drive are noise and vibration protection and WD's NASware 3.0 helps increase system compatibility, allowing WD Red drives to be more easily integrated with your existing network infrastructure.