DESC: Supercharge your Dell Dimension 8400 Series with a Dell Memory upgrade engineered, tested and customized for your system. Dell Memory is another great innovation from Dell superior quality at an extraordinary price. Adding more memory revs your system's engine and allows you to release its full potential when working with 3D imaging, multimedia, and other memory intensive applications. With Dell memory we also offer a limited lifetime warranty¹ and the benefits of Dell's award winning service and support. Maximize the value of your computer investment with an easy-to-install, reliable Dell Memory upgrade.