2x140mm or 3x120mm

[AMDuser]

My case has a dust filter in the front, should I use static pressure or aiflow fans?

 

[AMDuser]

Which is better 2 140mm fans or 3 120mm fans? If noise is not an issue

[Enderman]

It depends on the fans.

[AMDuser]

2 minutes ago, Enderman said:

It depends on the fans.

Let's say it's the same fan just different sizes

[Enderman]

8 minutes ago, AMDuser said:

Let's say it's the same fan just different sizes

Then 3x120 would typically be louder and deliver slightly more airflow.

But you need to read the specs to be sure.

[AMDuser]

14 minutes ago, Enderman said:

It depends on the fans.

Actually let's say it's 

https://www.amazon.com/Computer-Advanced-Quietness-Operation-Connectors/dp/B00K960BFY/ref=mp_s_a_1_9?ie=UTF8&qid=1544310991&sr=8-9&pi=AC_SX236_SY340_QL65&keywords=140mm+case+fan&dpPl=1&dpID=41ne2crDJIL&ref=plSrch

Or

https://www.amazon.com/Corsair-AF120-Quiet-High-Airflow/dp/B00F6S0XJO/ref=mp_s_a_1_4?ie=UTF8&qid=1544312609&sr=8-4&pi=AC_SX236_SY340_FMwebp_QL65&keywords=120mm&dpPl=1&dpID=51VHmYAnSkL&ref=plSrch

[Enderman]

41 minutes ago, AMDuser said:

Actually let's say it's 

https://www.amazon.com/Computer-Advanced-Quietness-Operation-Connectors/dp/B00K960BFY/ref=mp_s_a_1_9?ie=UTF8&qid=1544310991&sr=8-9&pi=AC_SX236_SY340_QL65&keywords=140mm+case+fan&dpPl=1&dpID=41ne2crDJIL&ref=plSrch

Or

https://www.amazon.com/Corsair-AF120-Quiet-High-Airflow/dp/B00F6S0XJO/ref=mp_s_a_1_4?ie=UTF8&qid=1544312609&sr=8-4&pi=AC_SX236_SY340_FMwebp_QL65&keywords=120mm&dpPl=1&dpID=51VHmYAnSkL&ref=plSrch

The corsair ones are louder and move more air.

[WoodenMarker]

1 hour ago, AMDuser said:

Let's say it's the same fan just different sizes

Bigger fans are better but there aren't any 140mm's that are just scaled up 120mm's. The thickness stays the same at 25mm and the design changes. 120mm's will generally be better though mainly due to a wider selection available making it easier to get good 120mm's.

What's considered static pressure and airflow is fairly arbitrary and dust filters range from a bit restrictive to very. What case are you using?

1 hour ago, AMDuser said:

Actually let's say it's 

https://www.amazon.com/Computer-Advanced-Quietness-Operation-Connectors/dp/B00K960BFY/ref=mp_s_a_1_9?ie=UTF8&qid=1544310991&sr=8-9&pi=AC_SX236_SY340_QL65&keywords=140mm+case+fan&dpPl=1&dpID=41ne2crDJIL&ref=plSrch

Or

https://www.amazon.com/Corsair-AF120-Quiet-High-Airflow/dp/B00F6S0XJO/ref=mp_s_a_1_4?ie=UTF8&qid=1544312609&sr=8-4&pi=AC_SX236_SY340_FMwebp_QL65&keywords=120mm&dpPl=1&dpID=51VHmYAnSkL&ref=plSrch

AF120 LED's are better mainly due to the Rosewill fans you linked being not very good. 

[Mick Naughty]

Do you have a real purpose or want? Looking at some cheap fans, id run the led corsair just for the light. But they don't move much air but hey work.

Prefer 140 when ever I can. 

I have 2 140s as intake and 3 120s as in take in a pair of identical case. Same noctua fans, id go either route if the fans are good.