the perfect fan?

A purchase is more expensive than competitors but the packaging is super neat and the equipment is more than complete, since you find more fan: the 4 rubber corners, 4 screws and 4 rubber mounts, an extension to cable, a cable for connecting two y Fan, strain relief, assembly instructions ...
we can not do more complete! serious

for performance, I installed it on a radiator noctua who was previously equipped with a 3-pin fan so not PWM. The passage in pwm is very effective because I rotates with fewer rotations than before for the same cooling (between 22 and 32 °). The rotation speed is on average 230 trs but can also launch machine be within 150 very (at this speed my motherboard is not capable of detecting the fan turn). When I cut my second fan located in the extraction tower, the housing temperature rises and that of the CPU also. The noctua PWM starts to increase its speed when it detects the processor to 40 °. The speed turns in 750 and it is still very audible. Up to 1000 trs we do not really hear her. A maximum speed is almost 1500 and it is very very noisy but very effective.

Finally, an optimized fan to be on a heater that brews a lot of air even when the rotation number is low. In my case the radiator is not heating.

I have an Intel Core I5 ​​4590 Haswell on mini ITX config.
For more information on noctua, go to the website, there is a page dedicated to the choice of fan 12 cm.