What is 8 cm fan?

A 8 cm fan is a type of computer case fan that measures 8 centimeters or approximately 3.15 inches in diameter. It is commonly used to cool computer components such as the CPU, GPU, and power supply unit.

The fan blades on an 8 cm fan generate airflow that helps to cool the specific component it is attached to. The fan speed is typically measured in revolutions per minute (RPM) and can vary depending on the level of cooling needed.

8 cm fans can be powered by either a 3-pin or 4-pin connector, with the latter providing additional control over the fan speed. They come in different designs, including sleeve bearing and ball bearing, and can produce varying levels of noise.

Overall, 8 cm fans are a popular choice for cooling components in small form factor PCs and other electronic devices where space is limited.