Features: *5V USB Powered: This 120mm fan operates on 5V USB power, making it suitable for cooling various electronic devices such as desktop computers, modems, and routers. It effectively reduces component temperature, prolonging the device's lifespan. *Speed Controller: Equipped with a speed controller, this fan allows you to adjust its speed from 2000RPM (100CFM) to achieve different airflow and noise levels based on your preferences. *Anti-Dust Fan Filter: Each 120mm USB fan includes an anti-dust filter, ensuring that your devices remain clean and free from dust accumulation. *Adjustable Speed Control: With three speed presets to choose from, you can easily customize the airflow and noise level of this PC fan. It can reach a maximum speed of 2300RPM while maintaining a quiet noise level of 27dB and providing a maximum airflow of 81CFM. *Wide Application: This versatile 120mm fan is compatible with various devices, including PCs, routers, hard drives, server rooms, and modems. With an 80cm long cable, installation is quick and hassle-free. Specifications: *Product Name:120mm 5V USB Powered PC Router Fan with Speed Controller *Material:ABS *Size:120*120*42mm，240*120*42mm（USB fan cable length: 80cm） *Color:black Package Content: 1 x Single/dual fan (with 3-speed speed adjustment cable) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 5V USB Powered: This 120mm fan operates on 5V USB power, making it suitable for cooling various electronic devices such as desktop computers, modems, and routers. It effectively reduces component temperature, prolonging the device's lifespan. Speed Controller: Equipped with a speed controller, this fan allows you to adjust its speed from 2000RPM (100CFM) to achieve different airflow and noise levels based on your preferences. Anti-Dust Fan Filter: Each 120mm USB fan includes an anti-dust filter, ensuring that your devices remain clean and free from dust accumulation. Adjustable Speed Control: With three speed presets to choose from, you can easily customize the airflow and noise level of this PC fan. It can reach a maximum speed of 2300RPM while maintaining a quiet noise level of 27dB and providing a maximum airflow of 81CFM. Wide Application: This versatile 120mm fan is compatible with various devices, including PCs, routers, hard drives, server rooms, and modems. With an 80cm long cable, installation is quick and hassle-free.Specifications: