Plextor Blu-Ray Disc Writer PX-B300SA. CD write speed: 40 x, CD rewrite speed: 24 x, DVD+R write speed: 16 x. CD read speed: 40 x, DVD-RAM read speed: 5 x, DVD-ROM read speed: 16 x. DVD drive average random access time: 160 ms, CD-ROM drive average random access time: 150 ms, BD-ROM average random access time: 180 ms. Disc loading type: Tray, Drive device, buffer size: 4 MB, Interface: Serial ATA. Dimensions (WxDxH): 148 x 190 x 42 mm, Weight: 0.87 kg