I have replaced all the fans in my computer case with Noctura fans. I wish there were more color options, but in the end performance was more important than looks. These fans move quite a lot of air and were significantly quieter than the Corsair fans I've had before. I've noticed that the temperature in my case has dropped 2 degrees since I last replaced the fan. That might not sound like much, but I feel like it's a big improvement considering the Corsair fan I replaced started spinning. The fans are mostly brown with slightly darker copper-brown corners, which are made of rubber to reduce noise. I don't like the screwless rubber stuff that comes with the fan, I didn't feel that they attached the fan to my case well enough so I used screws. I have more fans than my tower natively supports so I have a fan adapter and they work great with them. I can control the fan speed with an app from my fan adapter or from the BIOS. I cannot recommend these fans enough! You get what you pay for and what you get with these good quality fans.
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