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, videos and files. These drives are designed for use as primary drives in notebooks, external enclosures and for certain industrial applications. 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. Ideal for: Notebooks, external enclosures and certain industrial applications. Features o WD Quality: Tested and proven compatibility so you can rest assured the drive will work in your system. o Low Power Consumption: Advanced power management features help to optimize your notebook battery life. o Quiet: WD s exclusive noise reducing technology helps to minimize noise keeping your notebook extra quiet.