Hello Everyone,I got of these fans when I ordered My 1st water cooling Kit. It was a Swiftech H20-220 it cooled the My Cpu great at the time I did not know what fans were on the rads as they were on when I got the system. I have moved up a Little from those days and now run two loops one for My CPU and one for My 3 EVGA GTX580 Hydro Coppers and spent more that a few dollars on Fans for the 2 360 rads to get the great air flow that I got from the 1st one well I dug out the old rad. and See this two Fans thinking at 1st to see some big named brand one them to come and fined out they were just $6.00 Fans and the $12.00+ fans I had been using did not move as much air I could feel it So just because they are $6.00 do not think they do not cool well thay work very well. Later, Don