WD 4TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD

Designed with SMB customers in mind, the 4TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD from WD is well-suited for medium to large-scale NAS environments with up to sixteen 3.5" drive bays. Engineered to handle increased workloads, this 4TB drive operates using a SATA III 6 Gb/s interface, a 64MB cache, and a rotational speed of 7200 rpm, which all help to ensure uninterrupted data transfers with a sustained rate of up to 171 MB/s. This drive also features high levels of reliability, with 600,000 load/unload cycles, <10 in 10¹⁵ non-recoverable read errors per bits read, dual-plane balance control technology, and 1,000,000 hours MTBF for 8-16 bay NAS systems. Shock protection is provided by a multi-axis shock sensor and WD's NASware 3.0 helps increase system compatibility, allowing Red Pro drives to be more easily integrated with your existing network infrastructure.