RGB backlit with software OUTEMU Blue switch and Laser LOGO without LED Double injection keycap with English and Arabic Layout Life time: > 50,000,000 Aluminium front panel keyboard backlit totally has 12 kinds backlight mode + 1 kind backlight cutom mode backlight custom mode Side led backlit totally has 4 kinds Fully anti-ghosting key USB cable OD4.0mm,Length:1.8 meters, full copper braided wire with magnet ring 1Keyboard Size: 443.24(L) * 149(W) * 39.86(H) mm Compatible with Windows 98/NT/ME/2000/XP/VISTA/7/8/10 Voltage:5V, Work current: <350mA