The concept of water cooling had always been regarded as “hardcore” in the overclocking scene. The installation of a radiator, water block, reservoir and a pump was never an easy task to do. This leaves many overclocking enthusiasts having to be content with air cooling. The product that we took a look at in this review will definitely change the way you perceive water cooling. Introducing the Poseidon (model WCL-03 120Cu) Liquid Cooler series made by a new company named 3R Systems. Without further ado, let us take a look at the water cooling unit that might (who knows?) eventually up in your rig.