The Cooljag Falcon 92-Cu is identical to the Falcon 92-AL heatsink, except that it uses all copper fins where the later has fins of aluminum. Both versions use a 92mm fan that is internally illuminated with a couple green LEDs. To minimize the noise produced by the fan spinning unnecessarily fast, it is thermally controlled by a small thermistor that senses case air temperature.



Link: Frostytech