Genuine HLDS GS30N, HDWRW Alienware M14xR1, M14xR2, XPS 14z, 15z, and Precision M6500 Systems DVD�RW DVD-RW DVD+RW Super Multi Rewriter SATA Slim Internal Laptop/Notebook Slot-Load Optical Drive Compatible Part Numbers: HDWRW, HYWCG, Model Number: GS30N R