So I ordered 5 packs of these fans because my case has a lot of space for fans and I didn't want to spend too much money, but honestly I had to spend money. All of them technically work, but two of them were so loud they had to be turned off. So my score is 3/5 for the number of fans that worked properly. The controller is also very annoying as the fans don't like to stay connected and it's pretty poorly designed. It wasn't worth the amount I paid.
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