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. 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 Systems. It is supported by Dell? Technical Support when used with a Dell ? system.