Enermax T.B.VEGAS QUAD 18cm Cooling Fan (UCTVQ18A) 18/20cm giant fan for better cooling performance Shift Speed Control providing 3 cooling modes Blue/Red/Green/White 4-color LED with 6 lightening modes Vortex frame design concentrating airflow to cool hotspot Focus blades centering the light to increase brightness 18/20cm giant fan for better cooling performance Compatible with 18cm and 20cm mounting holes Shift Speed Control providing 3 cooling modes Blue/Red/Green/White 4-color LED with 6 lightening modes Vortex frame design concentrating airflow to cool hotspot Focus blades centering the light to increase brightness Turbine blades for high-pressure airflow