Samsung SE-S084F. CD write speed: 24 x, CD rewrite speed: 24 x, DVD+R write speed: 8 x. CD read speed: 24 x, DVD+R read speed: 8 x, DVD-R Dual Layer read speed: 8 x. DVD drive average random access time: 190 ms, CD-ROM drive average random access time: 190 ms. Disc loading type: Tray, Drive device, buffer size: 1.5 MB, Interface: USB. Dimensions (WxDxH): 141 x 141 x 19.5 mm, Weight: 0.32 kg