I must be deaf ...

As with any type of cooler of this type, make sure the size of your case.
Just returned in a fractal define where R4 is over the placeholder to my ram strips without touching the (attention to the size of your height barrettes, fashion is the huge heatsinks those one ... is this good useful?)
Cooling properly an i5 3750k (not overclocked) and total silence when the PWM properly configured in the bios (asrock Z77 pro4 CM-M).
The installation requires the motherboard out that my camera gives access to the back of this one (it's more a failure of the motherboard, which positions the processor a bit more down than others, but I reports anyway). But not any more complicated than that.
Good quality and soberly class
Content for now, to see in the time ...