The rise of Big Data has led to an increased demand for storage across the entire application and workload spectrum. With the Ultrastar DC HC500 series, Western Digital offers reliable high-capacity hard drives that can handle the significant data growth in data centers. Thanks to HelioSeal technology, the industry's only fifth-generation helium platform, the DC HC500 series drives are designed for public and private clouds, where storage density, watts per TB, and euros per TB are critical factors for achieving the most cost-effective infrastructure. HelioSeal technology is the foundation for high storage capacity, excellent reliability, and maximum energy efficiency.