Lite-On IHBS112. BD-R write speed: 12 x, DVD+RW write speed: 8 x, DVD-RW write speed: 6 x. DVD+RW read speed: 16 x, DVD-RW read speed: 16 x, CD-R read speed: 48 x. DVD drive average random access time: 150 ms, CD-ROM drive average random access time: 150 ms, BD-ROM average random access time: 250 ms. Mounting: Vertical. Width: 146 mm, Depth: 170 mm, Height: 41.3 mm