Philips SPD2411SD DVD 18x ReWriter Internal Drive. CD rewrite speed: 24X by CAV, DVD+R write speed: 18X by CAV, DVD-R write speed: 18X (24300KB/s) @ CAV. CD-R read speed: 48X by CAV, DVD-RAM read speed: 12X by PCAV, DVD-ROM read speed: 16X by CAV. Access time: 140 ms. Drive device, buffer size: 2 MB. Plug and Play: Plug & Play