Plextor PX-830UF. CD write speed: 40 x, CD rewrite speed: 32 x, DVD+R write speed: 20 x. CD read speed: 40 x, DVD-ROM read speed: 16 x. DVD drive average random access time: 150 ms, CD-ROM drive average random access time: 120 ms. Disc loading type: Tray, Drive device, buffer size: 2 MB, Interface: USB & FireWire. Dimensions (WxDxH): 162 x 275 x 54.5 mm, Weight: 1200 g, Height: 54.5 mm