Zalman ZM-RF1 Reserator Fan Kit
 

Zalman has never shied away from making products that target small niche markets. With the ZM-RF1, they seem to have a product that is desperately seeking a purpose. Zalman's Reserator series of liquid cooling systems fit into a target market by virtue of their silence. By adding the ZM-RF1, the user turns a silent system into a quiet one with lackluster performance. In my opinion, a 2-3C drop in temps is a poor trade-off for the added noise