The product is a DC frameless fan 40 x 40 x 20mm, manufactured by Guangzhou Mega Technology Co., Ltd. It is a type of fan that is designed to be used in a computer case. The fan is made of plastic and has four blades.
ParameterValue
- Product Type: DC Brushless fan
- Size: 40 x 40 x 20mm
- Bearing Type: Double ball bearing, sleeve, hydraulic, other
- Frame Material: Plastic (UL94V-0 flammability rating)
- Blade Material: PBT plastic (UL94V-0 flammability rating)
- Weight: 26 g
- Rated Voltage: 5 V,12V
- Operating Voltage Range: 6-6V (5V), 7-13.5V (12V)
- Rated Current:04 A to 0.38 A
- Rated Input Power:4W to 1.92W
- Speed: 4000 RPM to 7500 RPM
- Air Flow:53CFM to 3.54 CFM
- Maximum Air Pressure:42mmH2O to 9.11mmH2O
- Noise Level:5dB-A to 29.045.3dB-A

Key Features:
- Compact size: The dimensions of 40x40x20mm make it ideal for devices with limited space.
- Superior material: Both the frame and impeller are made of UL94V-0 flame-retardant plastic, ensuring excellent high-temperature resistance and safety.
- Multiple models: Offers various models with different voltages, currents, speeds, etc. to meet the cooling needs of different devices.
- Variety of bearing options: Includes oil-impregnated bearings, ball bearings, super-lubricated bearings, and long-life bearings, allowing for selection based on the operating environment and requirements.
- Waterproof rating: Models with different waterproof ratings such as IP55 and IP68 are available for diverse environments.
- Optional sensors: Optional speed sensors, temperature sensors, etc., enable more precise control and monitoring.
- Long lifespan: Ball bearing models can have a lifespan of up to 50,000 hours, ensuring high reliability.
- Low noise: Low noise levels are suitable for noise-sensitive applications.
- High static pressure: High static pressure provides stronger airflow.
Advantages:
- Versatility: Widely applicable for cooling various electronic devices such as laptops, servers, power supplies, 3D printers, routers, etc.
- Stable and reliable performance: The use of high-quality materials and advanced manufacturing processes ensures stable and reliable product performance.
- Strong adaptability: Multiple models and configurations can flexibly adapt to different application environments and requirements.
- Long service life: A longer service life reduces replacement frequency and lowers maintenance costs.
- Low noise, smooth operation: Does not generate excessive noise interference to the surrounding environment, improving user experience.
- High safety: Flame-retardant materials and multiple protective measures ensure safe product use.
Primary Application Scenarios:
Given the aforementioned characteristics, the MG-BB4020 fan is well-suited for cooling the following types of equipment:
- Small Electronic Devices:
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- Portable Electronics: Such as laptops, tablets, e-readers, etc. These devices often have limited space and require small, efficient cooling fans.
- Power Banks: High-power power banks generate a significant amount of heat during charging, requiring fans for cooling.
- Routers, Switches, and Other Network Devices: These devices generate heat over extended periods of operation and require fans to maintain stable operation.
- Set-top boxes, smart speakers, and other home audio-visual equipment: The internal chipsets in these devices can also generate heat, requiring fans for cooling.
- Industrial Control Equipment:
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- PLCs, VFDs, and other control equipment: These devices are widely used in industrial production and require stable cooling to ensure reliability.
- Sensors, instruments, and other measurement equipment: These devices often operate in harsh environments and require fans with waterproof and dustproof functions.
- Automotive Electronics:
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- In-vehicle computers, navigation systems, etc.: These devices generate heat during operation and require fans for cooling.
- Motor controllers: Motor controllers generate a significant amount of heat during operation and require high-efficiency cooling fans.
- 3D Printers:
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- 3D printers generate a significant amount of heat during the printing process, requiring fans to cool the print head and print chamber.
- Medical Equipment:
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- Some medical equipment, such as small medical instruments and analyzers, require fans for cooling and ventilation.