Samsung SN-506AB/BEBE. DVD-R write speed: 8 x, DVD+R write speed: 8 x, DVD-RW write speed: 6 x. DVD+R read speed: 8 x, DVD-R read speed: 8 x, DVD-RW read speed: 8 x. DVD drive average random access time: 130 ms, CD-ROM drive average random access time: 130 ms, BD-ROM average random access time: 200 ms. Interface: SATA. Width: 128 mm, Depth: 129 mm, Height: 12.7 mm