It is shocking what kind of junk there is out there to buy. Only 30% of the devices tested are worth paying for. If you are interested in regulating your fans, you should also furnish your system with numerous heat sensors. An alarm function triggered at critical levels should alert the user that the PC is getting too hot, or better yet, automatically take control of and adjust fan settings. But that is a luxury that can only be had for a lot of money. The Fan-O-Matic by Innovatek can do all this, but its alarm function is pitiful, thus it falls into second place. The victor and recommended device is therefore the SST-FP52 Eudemon fan controller from Silverstone, which fulfils all of these tasks like a champ.