With the brushed metal head unit, the tinted top lens, quite the RGB LED show, sleeved tubes, and a sleek looking radiator with the NZXT name molded into the sides of it. Another point about these Kraken coolers is that they operate in near silence unless you are the type that likes to tinker and appreciates fan noise. Lastly, and what is on the minds of most buyers, the performance has not been bad either.