Looking for a psu for fans

[Sgt.emu]

I have a box of case fans and I wanted to use 2 140 mm fans for an air filter in my room. Do any of you have any recommendations for a psu? I don't need to control the speed of them ( honestly I prefer having fixed rpm for them). I just want something under $20 that is passively cooled and will run both fans ( cougar vortex fans) at max rpm.

[Adorable Cat]

something like https://www.amazon.com/100-240V-Transformers-Switching-Applications-Connectors/dp/B077PW5JC3/ref=sr_1_3?dchild=1&keywords=12v+power+supply&qid=1634073766&sr=8-3 would be a real cheap way to do it, you don't need like a pc power supply.

[Sgt.emu]

Would I just cut the wires and plug them in to that green adapter ?

[RONOTHAN##]

22 minutes ago, Sgt.emu said:

Would I just cut the wires and plug them in to that green adapter ?

Basically. If you'd rather not cut the wires for those fans, you can get a molex to PC fan connector and use that as a donor. 

 

Also, if you want something where you could control the speeds (or even overvolt them if you want), you can get something like this

https://www.amazon.com/Yeeco-Supply-Module-Voltage-Regulator/dp/B07VDRM4PG/ref=asc_df_B07VDRM4PG/?tag=hyprod-20&linkCode=df0&hvadid=385184478202&hvpos=&hvnetw=g&hvrand=179371732574162466&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9003821&hvtargid=pla-845603315984&psc=1&tag=&ref=&adgrpid=77282054623&hvpone=&hvptwo=&hvadid=385184478202&hvpos=&hvnetw=g&hvrand=179371732574162466&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9003821&hvtargid=pla-845603315984

practically the same thing, but this way you set a static voltage which sets the RPM of the fans. 

[Sgt.emu]

I do have some molex to fan connectors lying around from the days that I just ran all my fans on molex... yes it was very loud.