Built to WD's high standards of quality and reliability, WD Blue mobile hard drives offer the features that are ideal for your everyday mobile computing needs. Designed and manufactured with technology found in WD's original award-winning desktop and mobile hard drives. Available in a broad range of entry-level capacities, cache sizes, form factors and interfaces. We test hundreds of systems, configurations, and a multitude of platforms to give customers confidence in our drives. With the highest possible aerial density inside the thinnest space, the WD Blue mobile hard drives add as much capacity as possible to your laptop PC. Designed with strong aluminum materials and a hard Tied-Shaft motor, which increases drive pinch strength as much as 30 percent. These features allow for a more rigid structure without degrading performance or increasing power consumption. WD Blue storage is tested and recommended for use in notebooks, external enclosures and certain industrial applications. Acronis True Image WD Edition software, available as a free download, can clone drives and backup your operating system, applications, settings and all of your data. WD puts our products through extensive Functional Integrity Testing (F.I.T.) prior to any product launch.