Samsung SH-S223F. CD write speed: 48 x, CD rewrite speed: 32 x, DVD-R write speed: 22 x. CD read speed: 40 x, DVD-R read speed: 16 x, DVD-R Dual Layer read speed: 12 x. DVD drive average random access time: 130 ms, CD-ROM drive average random access time: 110 ms. Disc loading type: Tray, Drive device, buffer size: 2 MB, Interface: Serial ATA. Dimensions (WxDxH): 148.2 x 170 x 42 mm, Weight: 750 g, Height: 42 mm