The Ultrastar DC HC555 series uses exclusive HelioSeal technology, which replaces the air inside the drive with helium. This stable internal environment reduces resistance and friction, allowing the drive to operate with one of the lowest power consumption profiles in the industry. This innovation not only helps your business achieve its environmental (Eco Goals), but also ensures the stable operation of the drive under continuous workload conditions.

Western Digital implements energy-assisted perpendicular magnetic recording technology (ePMR), which allows for a significant increase in capacity without sacrificing performance. This technology helps customers reduce total cost of ownership (TCO) by improving the cost per Terabyte ($/TB) and lowering operational expenses (OpEx). It is a proven solution that enables data centers to grow rapidly while maintaining maximum efficiency.

The Triple-Stage Actuator (TSA) mechanism increases the number of tracks per inch (TPI) on the disk surface, while also providing much greater control over the actuator arm. This precision enables the achievement of higher capacities while maintaining low power consumption. TSA technology is critical for maintaining read and write speeds in multi-user environments, where response speed is key to productivity.

Designed for the safety of your data, the HC555 drive features rotational vibration (RV sensors) that proactively predict and neutralize disturbances. In addition, multi-axis shock sensors automatically detect any impacts, while dynamic fly height technology compensates in real time to protect the head and your data. This shielding ensures that performance remains stable even in the most demanding and dense server environments.

Western Digital guarantees the quality of the Ultrastar series with an impressive 2.5 million hours MTBF (Mean Time Between Failures) rating. This level of dependability, combined with the 5-year limited warranty, provides the peace of mind businesses need for managing critical data. This reliability is based on the same platform that has already been deployed in thousands of data centers worldwide, delivering field-proven results for trouble-free data storage.