Plextor PX-755A, Black. CD write speed: 48 x, CD rewrite speed: 24 x. CD read speed: 48 x. DVD drive average random access time: 150 ms, Access time: 100 ms. Drive device, buffer size: 2 MB, Interface: IDE (ATAPI). Dimensions (WxDxH): 146 x 41.3 x 170 mm, Weight: 1 kg