OTraki Mini Computer Fan 40mm USB 5V 3 Speeds 5000RPM 40x40x10mm DC Cooling for Laptop TV Box Small Appliances 4010 Interface 4CM Quiet Efficient Durable Compact Lightweight Portable

【Compact USB Cooling Fan】This 5V 40mm fan features a USB interface for easy plug-and-play use. Designed for cooling laptops, routers, TV boxes, power banks, and other small electronic devices. 【3-Speed Controller】This mini cooling fan comes with a USB speed control cable offering three adjustable speed settings. It allows you to cool your computer and mobile phone simultaneously, or other devices as needed. 【Small but Powerful】This compact 4cm USB cooling fan delivers strong airflow ( 6.12 CFM ) at 5000 RPM using a small magnetic attachment – impressive performance in a miniature size. 【Extended Lifespan】The 40mm 5V fan uses a sleeve bearing design for long-lasting reliability, operating for up to 35,000 hours at 25°C for dependable daily use. 【Package Contents】The package includes 1 x 40mm fan along with mounting screws and nuts for straightforward installation in various applications.