HL GA50N For Alienware 17 12.7mm Slot Load CD DVD DVDRW Optical Drive by Aokuntech Readable Format(s): CD-R, CD-ROM, CD-RW, DVD+R, DVD+R Dual Layer, DVD+RW Dual Layer, DVD-R, DVD-R Dual Layer, DVD-RAM, DVD-ROM, DVD-RW, DVD-RW Dual Layer Writable Format(s): CD-R, CD-RW, DVD+R, DVD+R Dual Layer, DVD+RW Dual Layer, DVD-R, DVD-R Dual Layer, DVD-RAM, DVD-RW, DVD-RW Dual Layer, CD-ROM, DVD-ROM Interface: SATA, Slot Load 12.7MM / Type: Internal Laptop Drive / Brand: HL /Model: GA50N /Buffer: 2MB /Dimension:128.0(W)mmx12.7(H)mmx129.0(D)mm