Very high-quality fans, really. I was skeptical, as even though I know the brand, I know it's not the super-duper top. However, they proved me wrong, as at max rpm they produce less noise than the fans of a liquid cooling system that I had (same max rpm, CoolerMaster liquid cooling by the way). Of course, there is no comparison, they are not meant for such tasks, as they are case fans and not pressure fans, but still, very tolerable noise. As for airflow, very good, at reasonable levels. Yes, they are not NFA12, but you don't buy them for that, these are for those who want lighting. They light up from the center and also from the ring around the blades, like CoolerMaster's Halo. Also, the ring lights up from the reverse side, so even if you install them upside down to bring in air, they will still light up. The package only didn't include a person to install them... It has everything inside, Fan Hub, RGB Hub, all nicely packaged to work even with the simplest Motherboard. I used them with the Gigabyte X570 Aorus Master and they work perfectly with RGB Fusion. Just keep in mind, the fans come without screws in their chassis, so you will have to screw them in yourself. It's intentional so that the screws fit into the rubber hole, resulting in zero vibrations. And when I say zero, I mean zero. Noiseless. A very good purchase for up to 45€.