Plextor PX-870A. CD write speed: 32 x, CD rewrite speed: 32 x, DVD+R write speed: 22 x. CD read speed: 48 x, DVD+R read speed: 22 x, DVD-R read speed: 22 x. DVD drive average random access time: 160 ms, CD-ROM drive average random access time: 130 ms. Drive device, buffer size: 2 MB, Interface: EIDE/ATA. Optical disk diameter: 120 mm