420 mm Liquid CPU Coolers

A 420mm all-in-one cooler uses three 140mm fans rather than three 120mm ones, giving it more radiator area than a 360mm unit and letting it hold the same temperatures at lower fan speeds. It is the quietest way to cool a high core count processor under sustained load. The catch is fit: relatively few cases take a 420mm radiator, and those that do usually mount it in the front or top only, so check your case's specification carefully before ordering. Units here are ARCTIC Liquid Freezer III Pro models, including ARGB and white editions. Smart Techno in Jaipur sells CPU coolers, online and over the counter.