I got this fan for around 2 euros maximum and superglue for 1euro
I melted the plastic with a lighter (be carefull) i recommend wearing gloves (not the plastic ones)

Step 1: Steps

1)You unscrew the router.

2)Melt the top part around the mmeters you need.

3)Super glue the fan on it.

4)Screw back in.

5)Connect with 3-pin fan connector.

I made it too a few years ago. I used a cpu fan first but it was very noisy. Then i changed it a small one. I powered it from its own power adapter. Still working :)
<p>How is the fan powered on this?</p>
<p>directly from the pc with 3 pin connector my pc case has some holes for cables so i got it through there</p>
<p>Nice and simple solution!</p>
<p>i also got a fan cable extender for about 3euros because cable was too short :P<br>and btw thanks alot</p>

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