Sata half-height internal DVD+R/ DVD+RW/ DVD-R/ DVD-RW/ DVD+R9/ DVD-R9/ DVD-RAM/DVD-ROM/ CD-R/ CD-RW/ CD-ROM combination drive. Support double layer DVD+/- R9 recording function smart-burn avoiding buffer under run error, automatically adjusting writing strategy & walking OPC to provide the best burning quality smart-x function adjusts CD-DA/ VCD/ DVD data Extraction to a fastest allowable speed according to both data request rate from host and disk quality. Abs system reduce vibration and noise during recording and reading. This Lite-On super drive comes with a combo kit that includes a 4 pin to 2 SATA power cable which splits into 2 SATA connectors -- allowing 2 drives to be powered. The combo kit also comes with 4 screws to lock in your drive and a Nero12 essentials program