Lighting: 8 high-quality LEDs in hub with milky-white blades for bright, even glow. RGB Sync: 4-pin 12V RGB. Performance: Newly designed blade/frame for high airflow and low noise; ideal for case, radiator, heatsink. Control: PWM for wide fan speed range. Bearing: Sealed Precision FDB with high-temp oil film (up to 250°C) for long lifespan and quiet operation. Noise/Vibration: Rubber pads on all corners for silent, stable performance. Connector: 4-Pin, Dimension: 140x140x25mm, Fan speed: 300±200~1800±10% RPM, Airflow: 16.8~100.8CFM, Noise: 4.19~26.45dBA, Static Pressure: 0.08~2.81mmH2O, MTTF: 120,000hrs