LG GH24NS90. DVD+R write speed: 24 x, DVD+R Double Layer write speed: 8 x, DVD+RW write speed: 8 x. DVD+R read speed: 16 x, DVD+R Double Layer read speed: 12 x, DVD+RW read speed: 12 x. Disc loading type: Tray, Optical drive type: DVD±R/RW, Interface: Serial ATA. Optical disk diameter: 120 mm. Dimensions (WxDxH): 146 x 165 x 41.3 mm, Weight: 0.7 kg