SATA half-height internal DVD + R/DVD + RW/DVD/DVD-R/DVD + RW/DVD-RW/DVD + R9 – R9/DVD-RAM/CD-ROM/DVD-ROM/CD – R/CD – RW/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