Buffalo MediaStation 8x Ultra-Slim Portable DVD Writer. CD write speed: 24 x, CD rewrite speed: 24 x, DVD+R write speed: 8 x. CD read speed: 24 x, DVD+R read speed: 8 x, DVD-R read speed: 8 x. Minimum system requirements: Windows Vista, Windows XP. Power consumption (typical): 7.5 W