The golf ball design is anscheinden for aerodynamics well.
Did the fan installed in the PC and tested - Without the fan, I had a relatively high hard drives temperature. My CPU temperature was in IDLE at about 30 degrees and under load at 38Grad.
After installation of the fan, the CPU temp is in IDLE at 20 degrees and under load between 28 and 30 degrees. So really awesome!
The fan rotates at about 1050 revolutions / min. The size of 120mm fans brings quite a bit of air into the housing and from the housing.
Mounting the fan was very easy with the supplied rubber pins.
I am fully satisfied with the fan.
Tipp Topp - KAUFEMPFEHLUNG²!