I got the "Print optimized" Noctua NF-F12 PWM ordered my two "old" CPU fan to replace "NANOXIA FX EVO 120mm PWM". The Nanoxia I have operated in "push-pull" to a "Prolimatech Super Mega" at about 600U / min, what an absolutely silent operation enabled. I'm such a high-priced product like the Noctua fans a high standard and can confirm this unfortunately after extensive test only partially. For a radiator they may be appropriate, but the cooling performance is not better than that of Nanoxia fan at identical rotational speed, at the same time, unfortunately, a much higher volume (also on 600U / min) of the Noctua fans. I will now use the two Noctua fans as a case fan and operate again Nanoxia on Prolimatech Super Mega.
Conclusion: One probably for the radiator operation. very well suited to the CPU cooler not so efficient and quiet as some günstigerere fan.
