The LED lighting of the 20cm fan includes an outer and inner LED ring, totaling 42 LEDs, to ensure visible uniformity of colors and brightness from all directions. With the 8-port LED ADD hub and the Raijintek remote control, you can set the IRIS RBW ADD fans to off, breathing, flashing, and single color modes. The optimized construction with the eleven fan blades offers a large amount of air with less noise and turbulence. It features a hydraulic bearing with low noise level and anti-vibration rubber pads on all corners. The appearance combined with the performance of the IRIS will make your case a focal point and a highlight for the case, while the optimized Ultra intake wing and case construction ensure excellent airflow and cooling performance of the computer