Reeven Euros is actually a single fan in the series featuring S-FDB bearing made by Sony and expected to deliver long life span of constant operation up to 120,000hrs (MTTF). Also the S-FDB bearing is made to provide long durability and most of all low noise operation. The Euros fan is offered as seven different variations which are:
- RA1225F08C – made to operate at 800 revolutions per minute, providing airflow level of 30.2 CFM, static pressure level of 0.022 inch H2O at noise level of 12.9 dBA.
- RA1225F12C – made to operate at 1200 revolutions per minute, providing airflow level of 46.4 CFM, static pressure level of 0.049 inch H2O at noise level of 22.3 dBA.
- RA1225F16C – made to operate at 1600 revolutions per minute, providing airflow level of 62.1 CFM, static pressure level of 0.086 inch H2O at noise level of 31.8 dBA.
- RA1225F20C – made to operate at 2000 revolutions per minute, providing airflow level of 77.8 CFM, static pressure level of 0.136 inch H2O at noise level of 38.3 dBA.
All four models are powered and regulated by a 3-pin cable and connector. The next 3 models are actually powered and regulated by a 4-pin PWM cable and connector.
- RA1225F12C-P – made to operate at 500~1200 revolutions per minute range, providing airflow level range of 18.8~46.4 CFM, static pressure level range of 0.009~0.049 inch H2O at noise level range of 9.8~22.3 dBA.
- RA1225F16C-P – made to operate at 500~1600 revolutions per minute range, providing airflow level range of 18.8~62.1 CFM, static pressure level range of 0.009~0.086 inch H2O at noise level range of 9.8~31.8 dBA.
- RA1225F20C-P – made to operate at 500~2000 revolutions per minute range, providing airflow level range of 30.2~77.8 CFM, static pressure level range of 0.022~0.136 inch H2O at noise level range of 12.9~38.3 dBA.
For this test and review I received the RA1225F16C-P and RA1225F20C-P, which are the fastest and the most powerful PWM powered and regulated versions. Fans, which I am really eager to test and review.
Let’s check the packages in which the fans are provided.
Both fans arrived to me for doing a test and review in an absolutely new for the company package made of a very solid transparent plastic box. Inside the box there is an entirely painted in white carton cover, holding the fan in place and allowing the option the fan structure to be seen from outside the package. Also the carton cover is hiding all of the additional accessories in a separate compartment. Of course, on the front side of the carton cover there is the model name and a lot of information regarding the S-FDB – Fluid Dynamic Bearing, for which I will talk a bit later.
|Reeven Euros RA1225F16C-P||Reeven Euros RA1225F20C-P|
The full technical specifications regarding the Euros fans with all its versions and the additional information regarding the products are located on the back sides of the white covers in several languages.
Enough for the package, let’s check the fans’ structure.
Reeven Euros RA1225F16C-P and RA1225F20C-P STRUCTURE
Reeven Euros RA1225F16C-P and RA1225F20C-P are absolutely the same fan featuring the same structure with some major performance differences such as the revolution per minute operation range, the airflow level, the static pressure level and the noise level.
|Euros RA1225F16C-P front view||Euros RA1225F20C-P front view|
Both of the fans are designed with a square 120 x 120 x 25mm plastic and painted in black matte frame made to be installed on a 120 mm case fan slot or a CPU cooler heat sink compatible with 120 mm fans. The frame itself is not equipped with any rubber isolation pads to reduce the vibrations of the fan. Also the frame doesn’t feature any LED holes or LEDs to provide a back light.
The frame itself is pretty standard so let’s pay more attention to the propeller and the bearing.
The propeller for both of the fans is absolutely identical, featuring 11 entirely painted in black matte blades, which are not very wide but have very sharply angled blades. The blades themselves are designed with 3 focusing channels on the top side, which are made to provide more stable and focused airflow for the optimal cooling performance.
And with this propeller design, I definitely expect some serious cooling capabilities and most of all steady airflow and static level pressure.
|Euros RA1225F16C-P back view||Euros RA1225F20C-P back view|
The propellers and the frames combined provide a very neutral appearance and solid structure. Of course, without good bearing they will be kinda useless. And I think it is about time to check the most interesting feature of the fans and that is the bearing.
Both of the fans are provided with the latest S-FDB bearing made by Sony Corporation designed with surface tension seal, porous sintered dynamic sleeve and fully oil filled. All of the features together are made to deliver an improved oil carrying ability, which will reduce the overall noise level generated while the ball bearing operates and will increase the overall life span of the fan up to 120 000 hours of constant operation. Also, the fan is made to deliver a better anti-shock system done with a surface contact mechanism.
The powering and regulation method of the S-FDB bearing of the fans is done by entirely sleeved in black mesh 4-pin PWM cable and white 4-pin PWM connector.
Reeven Euros RA1225F16C-P and RA1225F20C-P ADDITIONAL ACCESSORIES
After checking the fans’ structure I believe it is time to check the additional accessories added in the packages and accompanying the fans.
|Euros RA1225F16C-P accessories||Euros RA1225F20C-P accessories|
Both of the fans arrived with absolutely the same accessories pack featuring:
- A set of four, black rubber pins to attach the fans to a case fan
- A set of four, metal screws to attach the fans to a case fan slot
So far so good. I saw some really interesting features and I believe it is time to do some testing.
Reeven Euros RA1225F16C-P and RA1225F20C-P TESTS
The tests will be conducted in my standard way. I will install the fans and test them at 5V/7V/9V/12V and my goal will be to check the performance of the products in real conditions. They will be tested under close-to-perfect conditions, not taking into account any external factors. The results achieved during the test can in no way be the same if the models are mounted on a cooler or on the case fan slot of any modern computer case. I will measure the amount of air going through the fans for one hour and their speed. For this I use a fan controller, a voltage meter, an anemometer and a stand made specifically for this purpose.
The test results are shown in the following charts:
Airflow through the fans at 5V, 7V, 9V and 12V
Propellers rpm during the tests at 5V, 7V, 9V and 12V.
The anemometer showed the following air speed passing through the propellers:
After mounting the fans onto the stand, and leaving them to rotate for about 60 minutes at maximum speed, it was time to do the tests.
As with my other tests, again I started with a gradual increase of the voltage through the Lamptron FCT starting at 0V and both of the fans made at least one stable revolution at about 6V. To perform the tests I had to decrease the operational voltage to 5V.
Test at 5V:
At the first test conducted at exactly 5V, which is below the starting voltage, Reeven Euros RA1225F16C-P was rotating at 750 revolutions per minute and provided airflow level of 62.88 cubic metres per hour, while Reeven Euros RA1225F20C-P was providing airflow level of 79.68 cubic metres per hour while rotating at 960 revolutions per minute. At this test, both of the fans were absolutely silent.
Test at 7V:
At the second test conducted at exactly 7V, which is slightly above the starting voltage, Reeven Euros RA1225F16C-P was rotating at 1050 revolutions per minute providing airflow level of 93.6 cubic metres per hour, while Reeven Euros RA1225F20C-P was providing 108 cubic metres per hour, while rotating at 1320 revolutions per minute. At this test the first model was still silent, while the second model started generating a tiny noise from the air passing through the propeller.
Test at 9V:
The third test conducted at 9V, showed that Reeven Euros RA1225F16C-P was able to provide airflow level of 119.52 cubic metres per hour, while rotating at 1350 revolutions per minute. At the third test Reeven Euros RA1225F20C-P was providing 146.88 cubic metres per hour, while rotating at 1635 revolutions per minute. The first model started generating a tiny noise from the air passing through the propeller, while the second fan was pretty noisy.
Test at 12V:
At the last test conducted at 12V, both fans provided their maximum performance, which for Reeven Euros RA1225F16C-P was airflow level of 151.2 cubic metres per hour at 1665 revolutions per minute, while for Reeven Euros RA1225F20C-P it was 169.92 cubic metres per hour, while rotating at 1995 revolutions per minute. At these revolutions per minute both of the fans were seriously loud but were providing very serious airflow and static level pressure.
With the review and the tests done, I believe the time to express my feelings for the products has arrived.
Reeven Euros RA1225F16C-P and RA1225F20C-P CONCLUSIONS
1. Reeven Euros RA1225F16C-P and RA1225F20C-P Performance:
After I finished reviewing and testing the two of the most powerful versions of the Reeven Euros fan, I am really pleased with what I saw. Both of the fans are made with a very interesting and most of all very high-tech structure, made to provide the best possible performance/noise level balance.
The fans themselves are equipped with a propeller with a pretty aggressive design made to provide solid and reliable airflow and static pressure with an airflow focusing technology, while the long lasting life is guaranteed by a very reliable bearing designed by Sony. I believe both of these features combined together will definitely provide a lot of options and possibilities to cool heat sinks installed on motherboards cooling serious processors, working at idle or full load at default or extremely overclocked frequencies.
And with the wide revolutions per minute range they will definitely be a good choice for boosting the overall airflow inside every modern case. Of course, while working at low voltages and low revolutions per minute. This is a feature which will definitely guarantee a variety of usage and a lot of cooling scenarios and options.
Apart from that, I should say that while both of the fans were working at low revolutions per minute they were pretty quiet and were delivering pretty good airflow but when they were operating at full speed they were very loud and at the same time very good performers.
2. Reeven Euros RA1225F16C-P and RA1225F20C-P Appearance:
Both of the fans offer pretty simple and at the same time very stylish looking structure. With the entirely painted in black matte structure, they are a good choice and will stay neutral in all modern cases or modding projects in the black and not only colour schemes.
I think Reeven Euros RA1225F16C-P and RA1225F20C-P deserve the following reward:
Reeven Euros RA1225F16C-P and RA1225F20C-P have been added to the 120mm fans catalogue.
Official price (MSRP): Reeven Euros RA1225F16C-P: 17.50 eur
Official price (MSRP): Reeven Euros RA1225F20C-P: 17.50 eur
Warranty: 24 months
I thank Reeven for the test sample.