Cooler Master (R4-C2R-20AC-GP) Silent Fan - 120mm
R4 series fans offer a unity of maximum rotational
speed and optimum airflow. Using a unique long-life sleeve bearing fan,
the R4 series offers long life rating of 50,000 hours. R4 series fans
perform at a maximum of 90CFM at 2000RPM. These R4 series are available
in red, green, blue LED and dark smoke (no LED).