Lite-On IT Corporation 12.7mm Internal DVD Drives Optical Drives for Notebook drive (DS-8ACSH) Drive Type: Internal Slim DVD+/-RW Drive SATA interface. 12.7mm height for notebook computer use. High efficient power saving modes and ACPI compliant. Fast access time and high data transfer rate, could be vertical mounted (optional) DVD+R / DVD+RW / DVD-R / DVD-RW / DVD+R9 / DVD-R9 / DVD-RAM / DVD-ROM / CD-R / CD-RW / CD-ROM combination drive. SMART-BURN avoiding Buffer Under Run error, Automatically adjusting writing strategy & running 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.