Review on Noctua NF-A14 FLX, High-Quality Silent Fan, 3-Pin (140mm, Brown) by Aashit Jain (Rishabh ᠌

At the rated speed (800 rpm), it is barely audible at arm's length, it will not be heard at all in the system unit. Nearby, the noise of air on the impeller is heard - a low-frequency rumble. Doesn't start at 5 volts. From 7 volts it starts only in a horizontal position. At the same time, it starts without problems from 12 volts through a 220 Ohm resistor, and even in combination with a 220 Ohm resistor + LNA adapter (another 100 Ohms - a total of 320 Ohms) starts confidently.