Hydro Series H90 is a 140mm all-in-one liquid CPU cooler that provides better cooling with lower noise than other high-end liquid coolers. Liquid cooling simply works better than air cooling, and the self-contained design of the H90 makes it easy for you to protect your valuable CPU. For efficient cooling, bigger is better it’s simple physics. If your PC’s case supports 140mm fans, Hydro Series H90 will give you better performance. The larger diameter fan has better airflow with lower noise than most 120mm fans, and the 140mm radiator has more surface area for faster cooling.