Lite-On iHAS124. CD write speed: 48 x, CD rewrite speed: 32 x, DVD+R write speed: 24 x. CD read speed: 48 x, DVD+R read speed: 24 x, DVD-R read speed: 24 x. DVD drive average random access time: 160 ms, CD-ROM drive average random access time: 150 ms. Disc loading type: Tray, Drive device, buffer size: 2 MB, Optical drive type: DVD±RW. Weight: 600 g, Height: 41 mm, Depth: 170 mm