12CM large fan is silent? How much is it usually? What brand do you want?

Strictly speaking, a fan with a common price of 12cm and a rotating speed of 1600-2000 can't be considered as a small noise. Of course, now it is a fan of 12cm, which is called mute.

If the demand for air volume is not high, the input voltage of the fan can be reduced by mute, which is immediate. (My 12 and 14cm fans have all dropped to 5V or 7V. )

If you buy it in a retail store, the price ranges from 1x to tens of dollars. These are mainstream products. There will be hundreds of high-end products.

Brand doesn't matter, mainstream products can choose big brands. I'm used to using overclocking three.