I don't know what all the negative reviews are about these products but I am very happy with them. I have a very high end gaming system (Ryzen 9 3900X, RTX 2080ti, 32GB DDR4 3600MHz). I bought these fans because my computer was getting very hot, the CPU temp reached 90 degrees Celsius and my GPU temp reached 84 degrees, which is the maximum temperature I allow in my profile no matter what game I was playing. The case used to have only one fan on the back with two empty fan slots on the top of the case (not counting the three fans mounted on the AIO heatsink). It was terribly hot. I installed these fans in an exhaust configuration on top of the case (drawing air out of the case) and my temperature dropped 25-30 degrees in all of the previously mentioned areas. Not only that, the various connectors they come with make them compatible with just about any system. And they are dead quiet.
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