Delta Electronics AFB1212SHE 120x120x38mm Cooling Fan, 151.85 CFM, 58 dBA, 3700 RPM, 1.06 AMP, PWM 4-pin connector

If you're running a custom cooling loop, you'd be wasting your time not getting real fans like these. Easily controllable with a good fan controller. I don't hear them while gaming with headsets unless I want to. I keep the rpm around 2200. Ryzen 9 4950 OC To 4.4 all core clock. These fans suck ever bit of heat out of my system. Do your measurements though, because you'll want a big case to fit these with your thicc radiator lol

The only problem I've noticed with these fans are that the blades are really brittle. Be careful not to clean a screen in front of the fan while your unit is running because if you catch a blade, you'll shatter it.

So, I bought this to work with a 120mm radiator on a closed cooling system. The original fan died, so I wanted something capable of high speeds and PWM. I live in the desert, so cooling is higher priority than noise. I was pleasantly surprised that this thing stays pretty quiet below 70%. pushes air very very well, and didn't break the bank. I'm using it paired with a Asus Sabertooth 990FX and AMD FX-6100. Doesn't sound like a setup that needs extreme levels of cooling, but with video rendering, gaming, and other high-load applications, it's nice to have something that packs a punch. And this thing REALLY does.

This thing is a MONSTER. Moves a mountain of air through my PC. Can be VERY loud, but with a fan controller you'll be able to lower it when needed.

This is a nicely-made fan, which runs with very little power. It's a perfect fit for my project.

When used in the appropriate scenario this fan is capable of coolong down the hottest components.Coupled with a fan controller it is controllable and potent.

We bought this fan to make a bucket swamp cooler for our camper. It works wonderfully so far.

This fan really helps cool my computer. I have 2 of these as case fans and they are really great.