The DeepCool Gamer Storm Lucifer heatsink is a fairly large CPU cooler, very much resembling a passive thermal solution on quick glance due to its boxy footprint and widely spaced aluminum fins. The heatsink isn't a passive cooler though, its single fan is very much required to keep the Lucifer from becoming like its name-sake. The 140mm PWM fan is made by Deepcool with a rubberized frame so it sits comfortably against the aluminum fin stack without any rattling noises.
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