CMS, the recognized leader in notebook hard drive upgrades, offers the most comprehensive line of hard drive upgrades (Easy-Plug Easy-Go) for notebook computers. Easy-Plug Easy-Go notebook hard drives are complete upgrade solutions for all popular brands of notebooks. Easy-Plug Easy-Go drive upgrades are manufactured to meet or exceed the original equipment manufacturer's specifications and are fully tested for compatibility and reliability to ensure the utmost quality. This hard drive is designed for Dell Inspiron 5100 Series. For a complete compatibility list please refer to the original manufacturer's web site.