be quiet! Manufacturer of high quality computer equipment from Germany. We recommend a computer cooling fan. Silent Wings 4 and Silent Wings Pro 4, the 4th generation computer fan in the Silent Wings series, is a fan that focuses on efficiency and silence. It doesn’t offer any light on the fans. Silent Wings 4 has evolved over the years to be the ultimate PC fan. Able to perfectly dissipate heat from heatsinks, radiators, or other computing devices, Silent Wings 4 has been completely redesigned. An aggressive design in black with newly designed powerful propellers. but still retains the unique lines of the fan be quiet! clearly This new type of propeller can generate enormous Air Flow and Air Pressure. while still having impressively low noise levels. 
The 4 fan mounting points come with a newly renovated mounting bracket to make it stronger and easier to use. With rubber bands to help absorb vibration when the fan spins at high rpm. Can choose to install with normal screws. or plastic pins to attach the fan to the computer case without the need for a screwdriver. The Silent Wings 4 fan is designed with a 6-pole (6-pole) motor that accepts 3 phases (3 Phases). The result is low power consumption. This reduces the load on the power supply. Combined with FDB (Fluid Dynamic-Bearing) axial fan technology, the blades spin smoothly. Very low vibrations give the Silent Wings 4 durability and longevity.
The Silent Wings 4 comes in two sizes, 120mm and 140mm, and comes in three different versions: 3-pin, PWM and PWM High-Speed. mm) and 1,100 rpm (140 mm) are suitable for use as a case fan, while the High-Speed model is suitable for mounting on a heatsink or radiator. The maximum speed is 2500 rpm and 1900 rpm respectively.
Also be quiet! Silent Wings Pro 4 is also offering the highest-efficiency special edition for the pros and hardcore players. 140 mm). The fan has a switch to select the maximum speed of the impeller. Which is installed at the back of the fan to add options for users to adjust as needed. There are 3 levels as follows.
- M (Medium) mode, medium speed Focus on the lowest volume
- HS (High Speed) mode, high speed, focused on efficiency
- Ultra high speed UHS (Ultra High Speed) mode for maximum performance.
The Silent Wings Pro 4 comes with an additional fan mount. This type of mounting bracket is especially suitable for mounting on radiators as this type of mounting bracket allows the fan to be firmly attached to the radiator. It is forcing the air flow in all directions in the same direction.
The PWM connector for the Pro version is a high quality, tear resistant braided cable with a 4-pin plug. More durable and easy to use
Silent Wings 4 is scheduled to be released in Thailand. Mid-August 2022 through online channels and leading IT stores nationwide. With a Thai center warranty for up to 5 years from the importer of Connect IT Co., Ltd. with warranty conditions
- Broken – change a new one
Additional information: https://www.bequiet.com/en/casefans/silent-wings-4/3696