Das Keyboard Ultimate is an enhanced 104 or 105-key USB PC keyboard equipped with 100% blank keys mounted on gold-plated and clicky high-end mechanical key switches. Not as elite a typist as you want to be? Not a problem. Das Keyboard Ultimate can teach you to type exponentially faster in just a couple of weeks. Since there are no letters to look at when typing, your brain is forced to memorize the key positions. Slower typers almost double their speed and fast typers become über fast!
The RGS link can be found here.