120mm 5V ARGB Infinity Mirror Case Fan Low Noise Synchronous RGB Gaming PC Chassis Cooling Cooler Fan

Speed: 1200 RPM ±10%Airflow: 45 CFM ±10% Noise: 15–20 dBA ±10%, low-noise operating speedLighting: 5V 3-pin ARGB RGB lightingInterface: 4-pin power supply interface + 5V 3-pin ARGB lighting interface II. Positive/Negative Fan Differentiation and FunctionalityForward-facing fan:Function: To extract hot air from inside the chassis and expel it outward, typically installed at the rear or top of the chassis as an exhaust vent.2. Reverse fan:Function: To draw in cold air from the outside of the chassis and circulate it inside, typically installed on the front or side panels as intake vents.III. Wiring Installation Tutorial Fan rotation power supply wiring (control speed)The fan comes with a 4-pin interface. Simply align it with the 4-pin fan socket on the motherboard and plug it in to power on and operate, 2. ARGB lighting wiring (for controlling light effects)The fan comes with a 5V 3-pin ARGB light cable. Locate the 5V ARGB 3-pin interface marked on the motherboard and insert it by aligning the pins