WINSINN 40mm 5V USB Fan - Dual Ball Bearing 5000 RPM Cooling Fan Replacement for PC/CCTV/Camping Power Bank/USB Devices, 1M Cable Brushless 40x10mm (4Pcs)

About this item

• 【Versatile Usage Scenarios】Ideal for cooling small electronics like 3D printers, Raspberry Pi cases, routers, VR glasses, and DIY projects. This 40mm 5V USB fan (40x40x10mm) offers a maintenance-free solution with its dual ball bearing design for long-lasting performance.
• 【High-Performance Cooling】Delivers 4.69 CFM airflow at 5000 RPM (±5%) with a low noise level of 26 dBA. The dual ball bearing ensures smooth, quiet operation while providing efficient cooling for compact devices in high-heat environments.
• 【Key Specifications & USB Convenience】Rated at 5V DC, 0.07A, and 0.35W, this energy-efficient fan features a 1m USB cable for easy power from any USB source—perfect for use with power banks, laptops, or adapters.
• 【Certified Quality & Durability】CE, FCC, and ROHS certified for safety and compliance. The dual ball bearing supports a lifespan of up to 50,000 hours, allowing 24/7 operation without maintenance—ideal for continuous use.
• 【Package Contents & Installation Tip】Includes four 40mm 5V dual ball bearing USB fans at an affordable price. Before installation, ensure your device’s voltage matches the 5V rating to guarantee safe and effective cooling.