I wish Alphacool would design their own fan rather than shoving their label on something I've already seen in other markets like Amazon/Aliexpress under random chinese branding.

They are a watercooling company that should prioritise radiator fans. I have some great static-pressure fans from Coolermaster and Arctic that are purpose-built for quiet, efficient performance at the sort of static pressures a radiator demands.

This is clearly a general purpose design that can be used for airflow or static pressure - small blades with steep angle of attack and obvious gaps between the trailing edge of one blade and the leading edge of the next. This gives a venturi effect that is great for magnifying airflow in situations with unrestrictive air paths, or coolers/radiators with very open fin stacks.and therefore a compromise when used with a radiator or dense heatsink that demands performance at much higher static pressures. Real static pressure fans have the opposite; Shallow angles of attack and larger blades where the leading edge of one blade overlaps the trailing edge of the blade ahead of it.



No, I'm not a fan blade expert but I do have a masters degree that included computational fluid dynamics so I'm not talking out of my ass here either.