Samsung SE-218BB. CD write speed: 24 x, CD rewrite speed: 24 x, DVD+R write speed: 8 x. Optical drive type: DVD±RW, Interface: USB 2.0. Compatible operating systems: Windows XP/Vista/7 Mac OS Android 3.1 +. Operating relative humidity range: 15 - 80 %, Operating temperature range (T-T): 5 - 40 °C, Storage temperature range (T-T): 0 - 60 °C. Colour of product: Black