Lite-On 52x 32x 52x + 16x Half-Height COMBO. CD write speed: 52 x, CD rewrite speed: 32 x. CD read speed: 52 x. DVD drive average random access time: 140 ms, Access time: 120 ms. Drive device, buffer size: 1.5 MB, Interface: EIDE (ATAPI). Dimensions (WxDxH): 145 x 170 x 41.3 mm, Weight: 0.9 kg