This is a, Genuine HLDS GS30N, HDWRW DVD±RW DVD-RW DVD+RW Super Multi Rewriter SATA Slim Internal Laptop/Notebook Slot-Load Optical Drive For Alienware M14xR1, M14xR2, XPS 14z, 15z, and Precision M6500 Systems Compatible Part Numbers: HDWRW, HYWCG, Model Number: GS30NFeatures/Specifications:9.5 mm height internal slim slot DVD±RW Drive. CD-R/RW, DVD-R/-R DL/ -RW/ +R/ +R DL/ +RW, DVD-RAM read and write compatible. CD Family and DVD-ROM read compatible. Active OPC (Running OPC) "Optimum Power Controller" provides for more reliable writes. Slot loading with powered disc pull-in and eject mechanism. Enhanced-IDE (ATAPI) model: SATA Interface. Supports UDF for easy writing to CD-R/RW discs. Improved Buffer Under Run Error handling through the Preventive function.CD-ROM CD-R High Speed CD-RW Ultra Speed CD-RW Ultra Speed Plus CD-RW 120mm (CD) 80mm (CD) Business Card (CD) Stamped DVD - 5, 9, 10, 18 DVD-R (Authoring) DVD-R (SL & DL)DVD+R (SL & DL) DVD-RW DVD+RW DVD-Download DVD-RAMV 2.1 120mm (DVD)