Samsung SH-224BB. CD write speed: 48 x, CD rewrite speed: 4 x, DVD+R write speed: 24 x. CD read speed: 48 x, DVD+R read speed: 16 x, DVD-R read speed: 16 x. DVD drive average random access time: 150 ms, CD-ROM drive average random access time: 130 ms. Disc loading type: Tray, Drive device, buffer size: 1.5 MB, Optical drive type: DVD±RW. Height: 42 mm, Depth: 170 mm, Width: 148.2 mm