Review on Noctua NA HC4 Chromax Black Heatsink NH D15S by Michael Heidelberg

Another winner from Noctua! They were very easy to apply to the Noctua NH-D15S heatsink and work by directing the cooling air THROUGH the cooling fins instead of letting some of it escape at the edges. Installation does not require removing the heatsink from the CPU, so precession took about 5 minutes and required no tools at all. I am totally impressed with the construction and build quality of the Noctua products! As with other components I've purchased from Noctua, the installation guide was clear and simple.