Plextor PX-B950SA. DVD-R write speed: 16 x, DVD+R write speed: 16 x, DVD-RW write speed: 6 x. DVD+R read speed: 16 x, DVD-R read speed: 16 x, DVD-RW read speed: 6 x. Interface: SATA. Compatible operating systems: Microsoft Windows 7/XP/Vista, Bundled software: Power DVD 3D. Width: 146 mm, Depth: 170 mm, Height: 41.3 mm