Samsung Super-WriteMaster™ 20x, Black. Colour of product: Black, Disc loading type: Tray, Mounting: Vertical/Horizontal. Interface: EIDE/ATA, Drive device, buffer size: 2 MB. CD write speed: 48x, CD rewrite speed: 4x, DVD+R write speed: 20x. CD read speed: 40x, DVD+R read speed: 16x, DVD-R read speed: 16x. DVD drive average random access time: 130 ms, CD-ROM drive average random access time: 110 ms