The Matias RGB Backlit Wired Aluminum Keyboard for PC is an enhanced USB keyboard. It has the reliable and traditional USB 2.0 connection: with a 1 port USB 2.0 hub: numeric keypad: black aluminum frame: and all the traditional PC functionality. However: it also has RGB backlighting; this means you can turn on backlighting for times where you want more light: and use the convenient color control dial to choose any color you want for the backlighting. Perhaps you would like your white backlighting to have reduced blue in it: to avoid disrupting your sleep: or perhaps you want your backlighting to be red: green: blue: yellow: magenta: or any other color to express your individuality. You just rotate the color control dial on the Matias keyboard to change the color. No software is needed.