This keyboard is what I wanted. Very well made, the keys are very nice, maybe a bit confusing at first with the LED buttons but you get done quickly. slightly thicker than a traditional keyboard, where the keys are identical to other keyboards. Ability to turn off the keyboard by pressing the "Esc" key. this button also allows you to adjust the brightness .. this keyboard has only one red. No installation CD, it is recognized by Windows 7 Pro or via the Net. It is equipped with some shortcuts "up - down" its access to the net with a single touch ETC ... a keyboard that has a plus if you want to personalize their PC with a bit of "fun". Fast delivery time at a competitive price.