The Dell ? CD-RW/DVD Internal Combo Drive brings all the advantages of a CD-RW, a DVD-ROM, and a CD-ROM to a single drive. This drive allows you to have CD-RW and DVD-ROM functionality in a single bay, freeing up space for other devices. It offers speeds ranging up to 48X CD reading. It features IDE bus interface for easy installation. This product has been tested and validated on Dell? systems to ensure it will work with your computer and is compatible with Dell ? GX620/GX520 Desktop System. It is supported by Dell ? Technical Support when used with a Dell system.