Model No. GT40L Interface SATA Type of loading Tray load Installation Internal Media support Reading Writing DVD-R 8X 8X DVD-RW 8X 6X DVD+R 8X 8X DVD+RW 8X 8X DVD+/-R9(DL,Dual-layer) 8X 6X DVD-RAM 5X 5X CD-R 24X 24X CD-RW 24X 24X Buffer size 1MB Specification Size(LxWxD) 129x128x12.7 mm Weight 162g Power supply Voltage DC5V+/-0.25V Power consumption 1100mA System requirement CPU Pentium 4 1.3GHz or faster CPU RAM 512 MB DRAM Required HDD Space HDD must have up to 10GB free space for DVD authoring Operation System Windows Windows®98 Windows®2000 Windows®XP Windows®Vista Windows®7 Application Universal design for notebook computers Product feature GT40L DVD-RAM Key Features:Enhance notebook capabilities by SuperMulti DVD rewritersWrite and rewrite CD discs at a 24x max speedwrite DVD+/-R discs at 8x. supports CD, DVD+/-R, and DVD-RAM formats.Running Optimize power control Circuit Buffer under-run prevention function embeddedSupport power saving and sleep mode*With light-scribe.