Has destroyed me a channel of my fan control (I suppose I could repair it by some soldering) when I tried to rebuild the part of my old body to another. After the fan control has served more as a backup and I have wondered why the fan does not turn, I connected it to the power supply via an adapter times ... as the thing after power has begun to smoke I immediately pulled the plug. The supplied adapter and the fan was then over.
In a 20-fan should not happen the. Otherwise, the fan did a good and gentle service. As long as that remains a Monday device with me, I can recommend the fan.