With 10 times the load capacity of hard drives for desktop computers, thanks to high reliability, capacity, and energy efficiency, as well as impressive performance, they excel at a wide range of tasks in data centers. Reliable drives with 24/7 premium support. For the most demanding environments of data centers: from entry-level servers to complex enterprise storage systems. The highest load capacity among 3.5-inch hard drives - specifically designed to handle up to 550 TB of data per year. One of the highest levels of reliability and durability for year-round operation without holidays or weekends, even in data storage environments with the highest demands. Compatibility Testing All WD Gold hard drives undergo comprehensive compatibility testing with various popular storage systems from different original equipment manufacturers, SATA controllers, and bus adapters to ensure ease of integration and the ability to get started immediately after connection. Dual-Actuator Head Positioning System The main actuator moves the head assembly based on approximate coordinates, while the auxiliary actuator positions the heads more precisely over the track.