Lite-On DH-20A4H-09C DVDRW. CD write speed: 0 x, CD rewrite speed: 0 x, DVD-R9 write speed: 8 x. CD read speed: 0 x, DVD-ROM read speed: 16 x, CD-ROM read speed: 48 x. DVD drive average random access time: 130 ms, CD-ROM drive average random access time: 130 ms. Drive device, buffer size: 2 MB, Interface: EIDE/ATA. Dimensions (WxDxH): 145 x 170 x 41.3 mm, Weight: 900 g