HIGHDING SATA CD DVD-ROM/RAM DVD-RW Drive Writer Burner for Dell OptiPlex 3011 9010 9020 New 100% Replacement CD DVDRW Dual Layer(DL) Drive/Burner/Re-writer For Dell OptiPlex 3011 9010 9020 CD DVDRW R DL Drive Enclosure Type Internal Interface SATA 12.7mm