HIGHDING CD DVD-RW DVD-RAM Optical Drive Writer Burner Repalcement for AD-7540A AD-7560A AD-7580A Read Speed: DVD: 8x max. CD: 24x max Write Speed: DVD-R: 8x max. DVD+R: 8x max ; DVD-RW: 6x max. DVD+RW: 8x max ; DVD-R DL: 6x max. DVD+R9: 6x max ; CD-R: 24x max. CD-RW: 24x max Compatibility: All Windows OS NOTE THAT : 1. Our optical drive is just a bare dvd drive WITHOUT any original accessories (faceplate, mounting frames, hooks, brackets). 2. If you replace your old optical drive by yourself, you just need to remove your old optical drive's accessories with a screwdriver, then install them on our optical drive, and then you can use it. 3. We will include one manual in package box for your reference, it is very easy to operate.