Wathai 80mm x 25mm PWN Fan, High Speed 5000RPM 12V 4Pin Fan, DC Brushless Cooling Fan, Big Airflow Fan

The performance fan PWM version is ideal for high efficiency case, radiator and CPU cooling as well as other applications that require both extended performance headroom and PWM for speed control.
This fan have high air pressure allowing for a direct and focused airflow making them ideal for the densely packed fins of a radiator. With the addition of the Ball Bearing, a longer lifespan and stability is possible.
High Speed: This model is designed to maximize airflow and can be too loud at full speed for some applications . The reverse design of the fan frame makes the air volume more concentrated and the air volume is farther away.
Great fan and just as loud as all the other ones when the speed is controlled. Below 2000 RPM they push much more air than silent fans at the same speed with no noticiable difference in sound level. It works like a charm.
80 x 80 x 25 mm ( 3.15 x 3.15 x 1 in. ) | Rated Voltage :12V | Rated Current: 0.45A | Airflow: 65CFM | Power: 5W | Speed: 5000 RPM | Connector: 4PIN