Its really cool in two ways... its cool in that its awesome and its cool in that it freezes a CPU. I saw a case mod with a circular window with a diameter of about 2 inches. They took a window aircondition and used like molded plastic and sent it through the hole in the case sort of around and through the cpu's heatsing and out the back. The temp was in the high teens like 17! I want to take it away and use it for myself