- Review -

04.10.2013 InsideHW.com

Quality of materials is very high, and fins are designed to achieve maximum efficiency and an excellent noise to air flow ratio. Noctua’s specific fin design is called Flow Acceleration Channels technology. Basically, the fins have channels which produce less noise, and at the same time improve the air flow. Frame is made from quality plastic, with stepped design which serves to decrease the turbulence. There’s a lot more technologies that are implemented in these products and the list would be too long to mention for each and every one of them. On the other hand, it should be noted that every fan comes with rubber buffers whose purpose is to mitigate the vibrations, and also with adapters for decreased voltage work. Of course, PWM model which is made for CPU coolers has a native 4-pin connector and can be controlled via motherboard. On the other hand, ULN version is marked as a Ultra Low Noise and has a minimal RPM count. It’s ideal for users who want a case with minimal level of noise. On the other hand, FLX model is somewhere in between and has a slightly higher RPM count, and it’s primarily meant for cases and fans with water-cooling systems. Consequence of its high RPM count is increased performance at the cost of barely increased noise. We have to admit that there are no large differences here.

"Simply put, Noctua did a splendid job and it’s clear that all three are premium products, because they can barely be heard even with an open case. Each of these models has its purpose, so it’s just comes down to what you need them for. Besides that, we highly suggest all three of them." (Nebojsa Todorovic, InsideHW.com)