Bests & Worsts Reviews from Amazon

Noctua is known for good fans that are two ugly colors. I needed a couple of fans, so I decided to try two NF-P12 Redux fans made for air pressure. This one is the 1700 RPM fan, the other is the noctua NF-P12 redux-1300 PWM high-performance quiet 120mm fan, ideal for PC cases, CPU heatsinks and water cooling radiators, award-winning premium model in affordable grey redux edition. Instead of the brown and tan, these are two shades of gray. Not the greatest colors, but better. They don't have rubber pads. In my case, I can't tell that it makes a difference. They don't shake around. Both fans are pretty similar. They come with silver screws instead of the black screws everything else uses these days. Speed testing: If I set them under 25% they will still run at their minimum speed. The 1300s go from about 350 to1300 rpm, the 1700s go from about 500 to 1680 rpm. Sound: At or below 1000 rpm, they are silent. At 1100 rpm, I can start to hear them. At 1300, they are easy to hear. At the full speed of 1680 rpm on this fan, it makes a lot of noise. Conclusions: If you can't control your fan's speed and it will be stuck at full power, I suggest the 1300 rpm model. As long as you can set a custom fan curve, I would suggest getting the 1700 rpm fan. It is only 150 rpm faster on the low end, will still be quiet up to 1000 rpm, can be comfortable up to 1300 rpm, but can hit nearly 1700 rpm if you need it. I do wonder if the rubber pads that cost extra would improve the sound at top speed.