Holder of these specific fans for a year now, I am extremely satisfied with their performance. It has a program through which you can adjust them and it makes your life easier. You can make them spin at a minimum of 500 rpm and you can't hear anything at all, it goes up to 1500 where it makes a bit more noise of course but it doesn't drive you crazy, let's not get carried away. Their lighting is not on the blades but it has a ring that changes colors through the application, it has countless modes and you can set a separate color for each and different styles. Excellent construction, nice color representation, and provides very good cooling for the computer.