Be quiet! announced the successor to the popular Silent Wings 3 fans. The German manufacturer spent nearly five years developing the Silent Wings 4, which should outperform its predecessor at the same noise level. In addition to the various regular variants, there will also be a pro version that offers different spin speeds and higher top speed thanks to a built-in switch.
Different Silent Wings Pro 4 and Silent Wings 4 fans at a glance.
Silent Wings 4 uses new fan blades that are very close to the frame and therefore should perform better when placed on heat sinks or radiators. Both the 120mm and 140mm models have a higher top speed than their predecessors, while claiming the same lifespan of 300,000 operating hours.
Be quiet in addition to the regular Silent Wings 4! a pwm version that increases max speed by at least 50%, and a pwm high speed variant. The manufacturer produces a total of six different skus, offering both 120 and 140 millimeters.
| Silent Wings 4 | max. speed | sound production | air flow | constant pressure |
|---|---|---|---|---|
| 120mm | 1,600 rpm | 18.9dBA | 48.7 cfm | 1.79mm H2O |
| 120mm PWM | ||||
| 120mm PWM high speed | 2500rpm | 31.2dBA | 76.7 cm/cm | 3.96mm H2O |
| 140mm | 1,100 rpm | 13.6dBA | 51.3 cm/cm | 0.92mm H2O |
| 140mm PWM | ||||
| 140mm PWM high speed | 1,900 rpm | 29.3dBA | 78.4 cm/cm | 2.36mm H2O |
Product segmentation in Silent Wings Pro 4 is pretty simple: the 120mm and 140mm models both have a switch to switch between three different profiles. In this way, the user can select the desired rotation speed and corresponding sound reproduction. Another distinguishing feature is the angular framework; this means the Pro should perform better with radiators. In the case of the 120mm variant, the company claims a maximum static pressure of up to 5.31mm H2O.
| Silent Wings 4 Pro | 120mm PWM | 140mm PWM |
|---|---|---|
| speed (medium) | 1,600 rpm | 1,100 rpm |
| Speed (high speed) | 2500rpm | 1,900 rpm |
| Speed (ultra high speed) | 3,000 rpm | 2,400 rpm |
| Sound production (max) | 36.9dBA | 36.8dBA |
| Airflow (max) | 83.9 cm3 | 97.41 cfm |
| Static pressure (max) | 5.31mm H2O | 3.64mm H2O |
All variants come with a five-year manufacturer’s warranty and will be available from 19 July. The company has announced the following suggested retail prices:
- Silent Wings 4 120 / PWM / PWM high speed: 23.90 Euro
- Silent Wings 4 140 / PWM / PWM high speed: 24.90 Euro
- Silent Wings Pro 4 120mm PWM: 31.90 Euros
- Silent Wings Pro 4 140mm PWM: 32.90 Euros
Source: be quiet!
Source: Hardware Info
