This is the keyboard that illuminates using seven colors for easy typing in darkened conditions. The compact 88-key layout is backlit by LEDs that set the keyboard to any of seven colors, including blue, violet, purple, white, red, green, and yellow. It can also change between colors at two different speeds. It plugs into a Mac or PC running Windows 7, Vista, or XP and includes three USB ports that connect to other USB devices, such as an external hard drive. The included AC adapter provides additional power when needed to charge devices plugged into the keyboard. The LEDs are rated for 10,000 hours, ensuring years of trouble-free typing. 12 3/4" W x 6 3/4" D. (1 lb.)