Noctua NF-A4x20 FLX 12V Quiet Computer Cooling Fan 40mm
Noctua Cooling Fans | Noctua Fan A4x20 | Noctua Nf A4x10 | Noctua Fan 12v | Noctua Fan 4 - Case Fans - Aliexpress
I wanted to upgrade my stock part cooling fan to a pair of noctua 40mm fans and when I did a test run they barely push any air through the ducts compared