Cooler Master MasterFan MF120 Halo Fan, Duo-Ring Case FanDuo Ring Addressable RGB Lighting 24 Individually Controlled ARGB LEDs for a stunning visual effect Silent Cooling Technology Noise Reduction Technology and Sound Absorbing Materials for a quieter and longer lifespan cooling solution PWM Fan Controly, Dynamic speed adjustment between 650 rpm to 1 800 rpm minimizing noise or maximizing air flow Certified Compatibility Compatible with most of Addressable RGB capable motherboards Aura Mystic Light and