Magnetic Levitation Bearing: Dramatically reduces bearing friction by magnetically levitating the fan blade, producing lower noise and higher performance. Dynamic RGB Lighting: Four independent ultra-bright center-mounted RGB LEDs output a vivid blast of light and color. Expansion Kit: This product is intended as an expansion of the ML120 PRO RGB LED 3 fan kit with Lighting Node PRO. The RGB functionality of this product requires a RGB lighting hub and Lighting Node PRO. Complete PWM Control: Dynamically control fan speed from 400 RPM to 1,600 RPM to minimize noise or maximize airflow. Built to Last: Long lifespan with a five-year warranty. Replaceable Corner Caps: Customize your build with replaceable corners (sold separately).