The Riser from Dell fits into the slot of your Dell System. Riser cards are used to extend a slot for a chip or card in a fully loaded computer. This product has been tested and validated for on Dell systems to ensure it will work with your computer. It is supported by Dell Technical Support when used with a Dell system. This product is compatible with the following systems: - PowerEdge R540 - PowerEdge R440 - PowerEdge XR2