LG GH22NS, Black, Serial ATA, 2 MB, 48x, 22x, 32x LG GH22NS. Product colour: Black. Interface: Serial ATA, Drive device, buffer size: 2 MB. CD write speed: 48x, DVD+R write speed: 22x, CD rewrite speed: 32x. CD read speed: 48x, CD-R read speed: 48x, CD-RW read speed: 40x. DVD drive average random access time: 140 ms, CD-ROM drive average random access time: 120 ms