In recent years, we have seen new heatsink manufacturers pop up all over the place. Most boasting a unique, innovative design method, fighting for a place in an already crowded market. Today we are looking at a new heatsink/fan unit from Zalman, called the CNPS5500-Cu. Zalman is a Korean company that was founded in 1999, and since the introduction of their CNPS (Computer Noise Prevention System) range of coolers, they have received much praise for being able to create heatsink/fan units that are high performing, yet virtually silent. Can they continue their trend with the CNPS5500-Cu? Join TweakTown as they attemp to find out!