Let’s keep this short and sweet. The Vardar 120mm fans have been fantastic from what we have seen here, and the F4-120 especially has been one of the fans I recommend. It had a nice PWM duty cycle, the RPM response curve was mostly linear and it excelled at airflow/noise on a radiator. In fact, it made the F3-120 a bit redundant in my books provided you had a good PWM controller. But people are never satisfied. In this particular example, aesthetics were a bit of let down in some eyes and enter then the F4-120ER (Extended Range). While it boasts to have an even longer PWM duty cycle and RPM range, the main attraction here is the choice between an all black and all white color scheme (including sleeving, heatshrink and fan header) for the fans. Thanks to Niko, we have a retail sample of each for testing.
Let’s take a look at the specs now. Given that these are not yet on their website yet, here are the rated specs taken off the product packaging:
- Speed: 2200 RPM (+/- 10%)
- Rated Voltage: 12 V DC
- Power Draw: 2.16 W
- PWM Duty Cycle: 25-100% (Extended Range)
- Connector: 4-pin PWM header
- Shaft Bearing: Double-ball bearing
- Bearing Durability: 50, 000 hrs @ 40 ºC (MTBF)
- Dimensions: 120 x 120 x 25 mm
- Max Air Flow: 77 CFM = 131 m3/h
- Static Pressure: 3.16 mm H2O = 31 Pa
- Sleeved Cable Length: 300 mm
- Noise Level: 33.5 dBA
and we see that things are a lot similar as expected. The max values are the same, and the extended range is on the lower speed. So let me say this right away- if you already have the F4-120 then don’t expect more performance or lower noise here (at the same fan speed, that is). Let’s explore the differences then beginning with a good look at the fans themselves on the next page.