9225 DC5V DC Cooling Fan 90×90×25mm 9 cm Mini Cooling Fan for Computer Cases and Power Supplies
Standard 9 cm square industrial cooling fan, powered by 5V DC low voltage with two red and black leads. Features oil-lubricated bearings for low noise and high airflow, suitable for ventilation and cooling in computer cases, power supplies, USB devices, DIY electronics, and small appliances.
Key Product Highlights
1. Standard 9225 universal size for versatile installation
Overall dimensions: 92×92×25mm; diagonal mounting hole spacing: 82.5mm. Features industry-standard mounting holes, allowing replacement of various 9cm fans without drilling new holes. Directly compatible with computer cases, power supplies, cabinets, and equipment enclosures.
The fan body is reinforced to 25mm thickness, creating a deeper airflow path and delivering superior airflow compared to thinner models.
2. Safe 5V DC Low-Voltage Power Supply, Directly Powered via USB
Rated at 5V DC, it can be directly connected to a computer's USB port, a power bank, or a 5V power module. With no high-voltage risks, it's suitable for DIY cooling, desktop mini-radiators, router cooling, and pet cooling boxes.
Electrical Specifications: Power consumption 1W, operating current 0.2A-stable operation that won't damage your devices.
3. Silent oil-lubricated bearings for low-noise, long-lasting operation
High-precision oil-lubricated bearing design, factory-filled with high-temperature-resistant grease, maintains a constant speed of 2500 5%, with operating noise as low as 24dB(A);
Optimized 7-blade curved fan design ensures smooth airflow; operates quietly enough not to disturb sleep at night, making it ideal for quiet home and office equipment.
4. 40.8 CFM High Airflow for Efficient and Rapid Cooling
Wide, high-angle fan blade design delivers an airflow of 40.8 CFM with ample static pressure, rapidly dissipating heat accumulated inside computer cases, power supplies, industrial control boards, 3D printers, and set-top boxes to prevent components from throttling or burning out due to overheating.
5. Flame-retardant engineering plastic housing, sturdy and heat-resistant
The housing and fan blades are made of glass-fiber-reinforced flame-retardant plastic, resistant to high and low temperatures and resistant to deformation and cracking; Supports long-term 7×24-hour continuous operation; factory-tested for voltage endurance and aging, ensuring stability and durability.
6. Two-wire (red and black) direct output leads for simple wiring
Standard 2P red and black output wires-red for positive, black for negative-eliminate the need to distinguish between complex pins, making it quick and easy for beginners to get started with DIY modifications or equipment maintenance and replacement.
Application Scenarios
Computer Components: Desktop cases, power supplies, external graphics card coolers
DIY Modifications: USB cooling pads, router/optical modem cooling, 3D printers
Small Appliances: Set-top boxes, projectors, power amplifiers, car refrigerators
Industrial Equipment: Small industrial control enclosures, instruments and meters, power adapters
Everyday DIY: Pet cage ventilation, homemade cooling boxes, desktop fans
What's in the box
1 x 9 cm 9225 9025 5V 90×90×25 9CM Computer Power Supply Case USB Cooling Fan
