Technotech Internal SATA DVD Writer for Desktop, PC 24X Internal DVD Writer with SATA - OEM 24X DVD±RW (Dual ±R)/RAM SATA Drive (Internal, Black) 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 Seamless Link 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 Support Fixed Packet, Variable Packet, TAO, SAO, DAO, Random Access Write, Incremental, sequential recording,restricted overwrite, Layer Jump recording, Raw Mode Burning & Over-Burn DVD read compliant: DVD single/dual layer (PTP/OTP), DVD-R, DVD-R multi-borders, DVD-RAM, DVD+R, DVD+R multi-sessions, DVD-RW, and DVD+RW CD read compliant: CD-DA, CD-ROM, CD-ROM/XA, Photo-CD, Multi-session, Karaoke-CD, Video-CD, CD-I FMV, CD Extra, CD Plus, CD-R, and CD-RW Support both 8cm and 12cm disc of CD and DVD family Supported transfer mode: PIO mode 4, DMA mode 2 and Ultra DMA mode 5