In fact, there are two essential differences between a fan and a fanless computer:

One is the difference in heat dissipation methods. fanless industrial pc,The former is active heat dissipation, and the latter is passive heat dissipation.

The second is the difference in portability. The power consumption of a fan computer is relatively high, and the fan itself is also thicker, so the body is generally thicker than the fanless product, so there is a more obvious difference in portability.

like:

Where are fanless industrial computers generally used?

The domestic market for fanless industrial computers

What are the characteristics of fanless industrial computers