LG UH12NS29. DVD-R write speed: 16 x, DVD+R write speed: 16 x, DVD-RW write speed: 6 x. DVD+R read speed: 16 x, DVD-R read speed: 16 x, DVD-RW read speed: 12 x. DVD-ROM transfer rate (sustained mode): 22.16 MB/s, BD-ROM transfer rate (sustained mode): 359.65 MB/s, CD transfer rate (sustained mode): 7200 KB/s. Interface: Serial ATA. Width: 146 mm, Depth: 172 mm, Height: 41.3 mm