At first I was a bit shocked at the price, but because I have a Corsair housing, should also be in Corsair fan. So I ordered me a total of 3 such fans and those built into my Corsair Carbide Air 540. Despite a final total of 5 of these fans cool my PC, it is not a piece of loud! These fans are well worth your money! They are Extremely quiet and have a very good air flow. I am satisfied Top!