Liquid Cooling now available on PSUs too ...
HardOCP
"We put the screws to Koolance's new 1300 watt power supply that takes advantage of being fully immersed in a non-conductive cooling liquid. Yes, we test at 100% load and 8-hour Torture Tests! Then we tear it apart to show you the insides. We almost cried.
... The concept of a liquid cooled power supply is on a purely theoretical level interesting as a liquid should have a higher specific heat capacity than air thereby proving to be better at cooling while being able to be quieter at the same time. This concept is embodied in liquid cooling of all forms but rarely is this concept taken to the extreme of actually immersing consumer level electronics in a non-conductive fluid as Koolance has done. Rather usually the cooling system employees tubing and heatsinks in order to move heat from the source to the radiator for dissipation and this system partially works by this method as this unit must be paired with a compatible Koolance liquid cooling system."