WD Blue Mobile PC Hard Drive WD Blue hard drives deliver solid performance and reliability while providing you with all the space you need to hold an enormous amount of photos, video, and files. These drives are designed for use as primary drives in notebooks, desktops, all-in-one PCs, external enclosures, and game consoles.. With a wide array of capacities, cache sizes, and interfaces means there’s a WD Blue hard drive that’s just right for you. And because it’s from WD, you’ll have the confidence in knowing you’ve selected a drive that’s truly world-class. IntelliSeek: Calculates optimum seek speeds to lower power consumption, noise and vibration Data LifeGuard: Advanced algorithms monitor your drive continuously so it stays in optimum health NoTouch Ramp Load Technology: Safely positions the recording head off the disk surface to help protect your data