Summary: This thing is loud as hell and the speed cannot be controlled no matter what you do or how you hook it up. But it's icy. It does one thing and it does it well, it's just pretty loud in doing it. I ended up replacing mine after about a week of having to turn up my TV just to hear over it. But i'll be using it on another project at some point.
Summary: I purchased 2 of these for a custom build and I have to admit they surprised me. From the reviews I thought they would be louder then they actually are. They move a significant amount of air. The lights are bright, but not too bright (they look good in low light setting). And you cant go wrong for the price.
Summary: I had installed them and changed from the four pin to the three pin to the motherboard and the wires fell out of the connector. It was an easy fix and works awesome for the price, Nice bright lcd's and great air output.