An old, yet still-selling aerodynamic design. Despite being attributed with excellent properties, we dare to disagree. It’s not quite the ideal system cooling fan that the NF-S12B-redux impellers were historically famed for either. Yes, it is quiet—but without the “airflow”. By that logic—where low noise carries exceptionally high weight—one could quickly conclude that the best fan is no fan at all. “Zero” noise, but substantial airflow isn’t happening here either.
Results: Static pressure, efficiency depending on orientation
Explanatory note: The orientation of the impeller can affect the resulting static pressure. In these graphs, we examine the ratio between the “pull” and “push” configurations, effectively producing a coefficient. A value greater than 1.00 indicates that the fan produces higher static pressure when pulling. Conversely, a value below 1.00 means it performs better when pushing. In some cases, the ratio is balanced and close to unity.
