LG GSA-T40N. CD write speed: 24 x, CD rewrite speed: 16 x. CD read speed: 24 x. DVD drive average random access time: 160 ms, CD-ROM drive average random access time: 140 ms. Drive device, buffer size: 2 MB, Interface: EIDE/ATA. Dimensions (WxDxH): 128 x 12.7 x 127 mm, Weight: 0.17 kg