Our next fan is the NF-A14. Below, the older NF-P14 is shown next to a new NF-A14. The P14’s adapters are attached, so this fan could be mounted in a position that requires 140mm standard screw holes. The NF-A14, on the other hand, has a standard 140mm frame. So when it is mounted to a 140mm position, the corners will not be open; there will be no backflow through open corners. As with the NF-S12A, the stepped inlet and the cushioned corners are evident. The “Flow Acceleration Channel” elements are present on the blades. The seven wide-chord blades suggest that this fan will emphasize static pressure in addition to airflow.



Comparing the NF-A15 to the NF-A14, we can see that the bladed parts of the fans are the same. The frames are where they differ. This picture does show the output side flaring of both frames. The P14 did not have this feature.



That blade looks very familiar – similar to a TY-140, perhaps? And the elongated frame resembles that of a Thermalright TY-140 and its derivatives. So let us compare them side by side.



Both fans have a 139mm by 152mm frame. The blades are similar, but not the same: the trailing corner of the TY-140 blade is a straight cut, while that on the NF-A15 is rounded. The leading edge of the blade is less raked on the NF-A15. So this is quite promising: the NF-A15 is following a superb design. The NF-A14 and the NF-A15 should be very good fans.