upHere NK12BK4-3 4.7 inches (120 mm) PC Case Fan, 4-Pin Connector, PWM, Quiet, High Performance, Set of 3, Black

Large Airflow Cooling Fan9 fan blades can effectively improve direction changing effect, prevent vibration and keep silent. Shredded design for efficient heat dissipation, temperature can be quickly reduced by 50-59°F (10-15°C). Maximum airflow reaches 86.34 CFM, ideal for cases and radiators
Built-in PWM function: The PWM controls the rotation speed and automatically changes according to the amount of heat. PWM fans can be controlled automatically by CPU temperature for optimal cooling performance. Supports any rotational speed from low 900 RPM to high 1800 RPM
Quiet and Efficient: Made of lightweight material for quiet ventilation. Four corners of the fan are equipped with shock-absorbing rubber pads to provide excellent anti-vibration and fan stability. Noise reduction and quiet. Equipped with a long life hydraulic bearing, it can rotate continuously for 40,000 hours
Durability: Equipped with hydraulic bearings for a long life. With excellent durability and long life, it can rotate continuously for 40,000 hours. You can use it with confidence
Set Contents: 1 set of 3, 3 sets of fixing screws x 4. This product comes with one year warranty. If you receive a defective item or an insanely fault, a free replacement will be provided. Please contact novonest JP