Ultrastar Data Center HC690 hard drives combine field-proven designs with the latest innovative technologies to meet customer demands for increased storage density in the existing storage footprint.

World's first 11-disk CMR HDD platform for increased storage density.

Ultrastar Data Center HC590 hard drives combine field-proven designs with the latest innovative technologies to meet data center demands for increased storage density in the existing storage footprint.

Future of More. Plus One

The world's first 11-disk CMR HDD platform delivers unbeaten capacity of up to 26TB to help quench customer's insatiable demand for increased storage density in the existing storage footprint.

Rapid Qualification and Rock Solid Reliability

Leveraging field-proven hardware and firmware designs from generations of highly successful products ensures easy qualification, seamless integration and rapid adoption while maintaining superior dependability and reliability.

Maximum Rack-Space Efficiency

The higher storage density provided by 11 disks combined with our energy-assisted Perpendicular Magnetic Recording (ePMR) technologies, which increase tracks-per-inch (TPI), allow data centers to maximize their storage efficiency.

Protected Against Vibration & Shock

Our exclusive Rotational Vibration Safeguard (RVS) uses dual sensors to anticipate and counteract disturbances, maintaining peak performance in high-vibration environments. Combined with Dynamic Fly Height technology, Western Digital offers exceptional drive reliability and protection from unexpected shock events.

Engineered with Industry-Leading Technology

Western Digital's proprietary OptiNAND™ technology leverages integrated iNAND® embedded flash to perform key housekeeping functions, freeing up more capacity and improving the overall drive performance.

Powerful Performance and Resiliency

Choose ArmorCache™ write cache disabled (WCD) mode for increased random write performance or select write cache enable (WCE) mode to protect cached data in case of Emergency Power Off (EPO) or unexpected power loss scenarios.

Meet Eco Goals with Helium

Choose ArmorCache™ write cache disabled (WCD) mode for increased random write performance or select write cache enable (WCE) mode to protect cached data in case of Emergency Power Off (EPO) or unexpected power loss scenarios.

• Delivers increased storage capacity with maximum performance, giving you the space you need without compromising speed


• Easily access and retrieve files frequently, making the process convenient


• With 26 TB capacity, you have ample space to store a vast number of images, extensive hours of video, or a large collection of songs


• 3.5" form factorenables hassle-free and easy usage, enhancing overall efficiency