A computer fan is any fan used for active cooling inside or attached to a computer case. Fans are used to draw cooler air into the case from the outside, exhaust hot air from the inside, and move air through a heat sink to cool specific components. Axial-flow fans and sometimes centrifugal (blower/squirrel-cage) fans are used in computers. Computer fans are usually available in standard sizes such as 120 mm (most common), 140 mm, 240 mm, or even 360 mm. Computer fans are powered and controlled using 3 or 4 pin fan connectors.
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There are so many PC fans out there that it can often be difficult to locate one that will not only provide enough airflow to keep everything cool within the best PC case but one that will also look good and match your overall aesthetic. We've rounded up the absolute best case blowers available right now for your next PC build.
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