Drive to endure. Ultrastar(R) hard drives feature up to ten times the workload rating of desktop drives and employ advanced technologies for enterprise class reliability, power efficiency and performance. Designed from the ground up to be an ultra-robust storage device, Ultrastar drives are the perfect choice for your business. Best-fit Applications Enterprise servers and storage systems Business-critical applications needing reliable, robust high-capacity storage Surveillance analytics and industrial applications High Workload Rating Delivering dependable performance to any storage environment, Ultrastar hard drives are designed with a workload rating up to 550TB per year, among the highest of any 3. 5-inch hard drive. Helio Seal(R) Technology Featured in over 20 million shipped Western Digital hard drives, Helio Seal technology enables the highest capacities and less turbulence on large storage arrays. And now on its 4th generation design, Helio Seal technology is field-tested and proven to deliver high capacity, reliability, and power efficiency you can trust. Enterprise-class Storage to Rely On With up to 2. 5 million hours MTBF rating, Ultrastar hard drives deliver reliability and durability, are built for yearly operation (24x7x365) within the most demanding storage environments and are backed with a 5-year limited warranty. Compatibility Testing All Ultrastar hard drives are extensively tested across a variety of popular OEM storage systems, SATA controllers, and host bus adapters to ensure ease of integration for a plug and play solution. Vibration Protection Enhanced Rotational Vibration Safeguard (RVS) technology uses sophisticated electronics to monitor the drive and correct linear and rotational vibrations in real time for improved performance versus traditional desktop drives in high vibration environments. Dual-stage Actuator Technology Ultrastar drives feature a dual-stage actuator head positioning system for a high degree of accuracy. The primary stage pr