Product Detail Suscool 121 is designed to last and cool as long as your system. The use of rubber screws to dampen any physical shocks from the out side, combined with the enter bearing . The "SilverStone SC00L121 Suscool Ultra Quiet Fan with 9-Bladed design" is best product for you. We recommended SilverStone SC00L121 Suscool Ultra Quiet Fan with 9-Bladed design