The Glowkey Keyboard is a windows standard U.S. layout 104- key keyboard. It has 4X larger lettering than standard keyboards which is designed to reduce eye strain and keep you typing with ease. The keyboard has glow in the dark keys and is also spill resistant making it ideal for home or office use. It is both PC and MAC compatible using a standard USB connection. Installation is made easy with no software or setup required. Give your office or home a little glow in the dark technology with this must-have Glowkey Keyboard.