SCALE IT IN GOLD. UP TO TEN TIMES THE WORKLOAD CAPACITY OF DESKTOP DRIVES. Reliability capacity power efficiency & performance for a multitude of Datacenter-specific applications. Robust storage with 24/7 premium customer support. Full Range of Nearline Capacities For the most demanding datacenter environments from entry-level servers to high end enterprise storage systems. High Workload Capability Designed to handle workloads up to 550TB per year which is among the highest workload capability of any 3.5-inch hard drive. High Level of Reliability One of the highest levels of reliability & durability for 24x 7x 365 operation within the most demanding storage environments. COMPATIBILITY TESTING All WD Gold hard drives are extensively tested across a variety of popular OEM storage systems SATA controllers & host bus adapters to ensure ease of integration for a plug & play solution. DUAL ACTUATOR TECHNOLOGY The primary actuator provides coarse displacement; the secondary actuator fine tunes the head positioning to a higher degree of accuracy..