I bought this fan to replace the stock fans that comes with my Corsair H110i GT water cooler. The stock fans are (were) really good as far as radiator fans go and my only complain was that they were noisy. I was about to give up finding replacement for them but then I found these bad boys.
A quick detour about water cooler radiator. The H110i has a medium-to-high fin-density. What that means is that they have excellent cooling characteristics: more density = more contact with cool air = better thermal dissipation. However that also means that you need a high-pressure fan to push air through. The stock fans are quite good - which is kind of an exception on its own, you don't usually good stock fans - at 4mmH2O max pressure but it's quite noisy at max speed.
Enter the challenger, the Noctua NF-A14 IndustrialPCC 3000. At max speed it spins 3000 rev per minute, generating 41dB noise and 10mmH2O pressure. What that number means is that at max speed, it can hold 10 mm worth of water (H2O) up. Now typically the measurement methods are different between manufacture, even between different lines of fan, so don't put too much stock into that number. However my wet-my-thumb test can confirm that at max speed, it does push more air than the previous fan - my cpu temp can attest to that. And the best thing is that it's really quiet!
The fan is a little breakaway from the typical Noctua color scheme and I very much appreciate that - the beige color is quite an odd decision I think. It has 4 rubber padded corner to prevent vibration from contacting with the case. The cable is sleeved which is a blessing and a curse. It's a very nice cable, but the sleeve make it hard to route around the corner.
All in all, this is an excellent choice if you're concerned about performance.