Image: be quiet!

be quiet! has launched the Silent Wings 4 and Silent Wings Pro 4, updated versions of one of the most popular fans on the market for enthusiasts who are aiming to build a whisper-quiet system. Similar to its predecessors, the fourth iteration of Silent Wings has a focus on low-noise operation, with the 120 mm PWM option making no more than 18.9 db(A) of noise at full speed, but there are some substantial improvements, such as a new blade arrangement, which offers “the smallest possible distance between fan blades and fan frame, making for extraordinarily high air pressure.” Users will also find a reworked mounting system with two types of corners in the form vibration-free rubber push-pin corners and traditional hard-plastic screw-type corners. be quiet!’s Silent Wings 4 and Silent Wings Pro 4 will be available in stores beginning on July 19.

Image: be quiet!

be quiet!, the German manufacturer for premium PC components, proudly introduces the Silent Wings 4 and Silent Wings Pro 4 fan series. These high-end fans are built for maximum performance in cases, on heat sinks, and on radiators, delivering not just great airflow but also impressive static pressure. The fans also feature a new mechanism for the mounting corners, making it easier than ever to adapt the fans to different situations, and some visual design improvements. And with the Silent Wings Pro 4, be quiet! has turbo-charged its fans to reach extremely high rotational speeds yet offering consumers a choice to configure these fans for low noise, a noise/performance balanced mode, or maximum performance.

With the new Silent Wings 4 series, be quiet! has focused on improving static pressure, which is of vital importance when mounting fans to heat sinks or liquid cooled radiators. Compared to the award-winning Silent Wings 3 series, the fan blades have a different shape and feature a lower tip clearance (1.0 mm for all Silent Wings 4 models versus 1.2 mm for Silent Wings 3), while the funnel-shaped air intake is replaced with a funnel-shaped air outlet, dispersing the air over a greater area. These changes have made a drastic improvement in static pressure, therefore making Silent Wings 4 a top choice for heat sinks or radiators, while keeping its noise levels impressively low.

Easier mounting and visual improvements

Silent Wings 4 comes with two different mounting corners: vibration-free rubber push-pin corners and traditional hard-plastic screw-type corners. Thanks to a reworked mounting system it is easier than ever to exchange these corners, without the need for tools. Visually, the fans now feature a sleek black-on-black manufacturer logo. Silent Wings 4 comes in two sizes (120 mm/140 mm) and three different models: 3-pin, PWM, and PWM high-speed. The regular models are best suited as case fans with their maximum speeds of 1600 rpm (120 mm) and 1100 rpm (140 mm), while the high-speed versions are specifically tailored to heat sinks and radiators thanks to their higher speeds of 2500 rpm and 1900 rpm respectively. All Silent Wings 4 fans rely on a proven combination of a 6-pole fan motor with three phases and fluid-dynamic bearings for a long lifespan of 300.000 hours.

Going Pro for maximum performance

For consumers who really want no holds barred, be quiet! is introducing Silent Wings Pro 4. While these fans offer the same improvements as the Silent Wings 4, the rotational speed has been turbo-charged to 3000 rpm for the 120 mm version, and 2400 rpm for the 140 mm version. A speed switch on the back makes it easy for customers who don’t want to deal with PWM fan curves to set the maximum speed based on their preferred usage: Medium for silence-optimized operation, High Speed for a noise/performance-balanced mode, and Ultra High Speed for maximum performance. Silent Wings Pro 4 includes one additional corner type, specifically created for radiators. These radiator corners form a tight fit on the fan to prevent air leakage and to ensure maximum static pressure. The fans also feature a high-grade mesh sleeve cable and easy-to-use motherboard connector.

Source: be quiet!

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1 comment

  1. Color me slightly interested.

    In general, if one wants to charge Noctua prices or more, they'd better be offering competitive performance or hitting a niche that Noctua doesn't.

    In the case of the Silent Wings 3 fans, well, they moved less air and were louder than the equivalent Noctua. They're quiet if for some reason you need a fan that doesn't move all that much air - but then what's the point?



    The last sentence above is a bit of sarcasm - airflow, pressure, and both SPL and noise characteristics for particular usecases are all a balance, and some folks do find be quiet!'s current offerings to be effective - just at lower airflow levels. For the kind of case testing that we do, using be quiet! coolers, low airflow isn't in the cards. Further, be quiet! has stated that their Silent Wings 4 fans are focused on increasing static pressure while controlling noise, which may put them in a different category.

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