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