Antec H20 1250 Cooling Kit KUHLER 1250 Black Copper cold plate is optimized for thermal conduction Extra large pump and integrated PWM fan were engineered to cool the radiator efficiently Two Integrated PWM fans automatically adjust fan speed based on temperature. Built-in directional blades focus airflow through the radiator RGB LED illuminates your case and changes color to indicate CPU temperature Included software provides essential tools to control and monitor the KUHLER H2O 1250 Dual Pump operation for Max performance