Plextor PX-860SA. 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: 110 ms, CD-ROM drive average random access time: 110 ms. Disc loading type: Tray, Drive device, buffer size: 2 MB, Interface: Serial ATA. Dimensions (WxDxH): 148 x 180 x 42.3 mm, Weight: 800 g, Height: 42.3 mm