ASUS SBW-06D2X-U. CD write speed: 24 x, CD rewrite speed: 16 x, BD-RE write speed: 2 x. CD read speed: 24 x, DVD+R read speed: 8 x, DVD-R read speed: 8 x. DVD drive average random access time: 190 ms, CD-ROM drive average random access time: 190 ms, BD-ROM average random access time: 300 ms. Drive device, buffer size: 2 MB, Optical drive type: Blu-Ray DVD Combo, Interface: USB 2.0. Width: 140 mm, Depth: 157 mm, Height: 18.5 mm