LG GP40NR10. CD write speed: 24 x, CD rewrite speed: 24 x, DVD-R write speed: 8 x. CD read speed: 24 x, DVD+R read speed: 8 x, DVD-R read speed: 8 x. CD-ROM drive average random access time: 210 ms. Drive device, buffer size: 1.5 MB, Optical drive type: DVD-RW, Interface: USB 2.0. DVD-ROM transfer rate (sustained mode): 11.08 MB/s