Nanoxia DX-14-700/ DX-14-1200
The next fans to be tested are two Nanoxia DX14 models, which also sell sealed in a clear plastic blister with a cardboard center:
Both fans come with four long silicone mounts that will absorb vibrations if the fans are used for system case cooling:
Nanoxia DX14 fans are very similar to the previously tested Nanoxia FX12 and FX+12. Just like the latter two models, DX14 stand out due to their seven acid-green blades and black matt fan frame:
The fans measure 140x140x25 mm and weigh about 140 g. the fan itself sits on four regular pins, with sloped internal edge. There is a three-wire cable going along one of them. The fan blades of Nanoxia DX14 are made of high-tech polycarbonate Makrolon by Bayer MaterialScience. Their distinguishing feature is extreme broadening of the blade from the base towards the outer end. Together with the serious curving of the ends, these blades should theoretically create much higher airflow pressure than the traditional fan blades.
There are two barely noticeable edges around the inside of the fan frame:
Moreover, note that Nanoxia retention holes have bushes in them, which will make it impossible to install these fans onto the CPU heatsinks using traditional retention (by catching on to the inside of the fan frame).
Nanoxia DX14 fan is 134 mm in diameter (the second largest), while its rotor is one of the largest – 45 mm. both fans rotate with constant speed of 700 RPM for DX14-700 and 1200 RPM for DX14-1200, which is quite logical, judging by the model names. According to the specs, these fans create corresponding airflows of 27.6 and 52.4 CFM, generate 17 and 22 dBA of noise, and 0.91 and 1.27 mmH2O of static pressure.
The rotor stickers bear the manufacturer’s name and the fan model number:
Beneath them we find the very well familiar Nano Engineered Bearings (NEB) with guaranteed MTBF of at least 80,000 hours and an ECO-motor that can spin the fan at 4-13 V voltage (3.8 and 4.1 V startup voltages respectively). In this case the maximum power consumption will be 0.81 W for DX14-700 and 1.82 W for DX14-1200. The fans are powered via a 400 mm three-pin cable. They come without any adapters (make sure you have corresponding mainboard and rheobus connectors ready). However, I am sure that those who value reliability more than compatibility will be pleased with a 10-year unlimited warranty provided by the manufacturer. Nanoxia DX14 is priced around $16.50.
I would also like to add that according to the manufacturer, Nanoxia DX14 is also water-resistant. So, now let’s move on to our air-tests:
Nanoxia DX14-700 is practically noiseless, but it also creates very weak airflow. As for Nanoxia DX14-1200, it generates very little noise and therefore remains acoustically comfortable up to 980 RPM and very quiet up to 820 RPM, which is an excellent result for a 140 mm fan. Too bad that there are no higher-speed models in this lineup, which could have become very popular among extreme overclockers favoring air-cooling due to pretty high though not record-breaking airflow readings.