Competition drives change, and the Mugen 5 (Rev. B) shows how improvements over time result in a great cooler. Each generation of the Mugen builds on the foundation of the previous generation. This version of the Mugen brings much to the table including coverage for the latest AMD and Intel sockets, a fast, easy installation (with the included screwdriver) and plenty of room for RAM with tall heat spreaders. The 120mm Kaze Flex fan is about as quiet as it gets and it moves plenty of air through the fins stack, effectively removing heat from the CPU.