Lenovo ThinkPad DVD-ROM Ultrabay Enhanced Drive, 2 MB, 24x, 130 ms, 110 ms, 10 - 80%, 5 - 35 °C Lenovo ThinkPad DVD-ROM Ultrabay Enhanced Drive. Drive device, buffer size: 2 MB. CD read speed: 24x. DVD drive average random access time: 130 ms, Access time: 110 ms. Height: 0.512" (13 mm), Weight: 7.05 oz (200 g). Dimensions (WxDxH): 5.16 x 5.67 x 0.512" (131 x 144 x 13 mm)