HIGHDING SATA CD DVD-ROM/RAM DVD-RW Drive Writer Burner for Dell Precision M4600 M4700 M6400 Burn DVD's & CD's, Play/Read DVD's & CD's 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 Mechanism & Interface : Tray Load & SATA 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 include one manual in package box for your reference, it is very easy to operate.