Convenience: The design of the magnetic foot pad allows the fan to be easily attached to any metal iron products, and it is easy to realize different heat dissipation schemes with other accessories. Mini Cooling Fan: SCCCF 40mm mini USB cooling fan with 3-speed control, size and super lightweight design, perfect fit for DIY cooling and narrow place. High Quality: Metal grill on front side, protect cable and your hands; High quality bearings, durable; 100cm/3.3ft USB cable , meet connection needs.Please confirm the size by pics before purchasing. Double Ball Bearing Design & Long Service Life:Adopt high-quality double ball bearing motor, the service life is twice that of ordinary fans, and it can work continuously for a long time. Equipped with a metal frame and finger safety protection to prevent accidental injury during operation. Widely Used:This usb pc fan is not only suitable for cooling equipment such as personal computers, routers and HDDs, but also suitable for AV equipment and game consoles. Simply connect to a device equipped with a USB terminal than can start cooling easily without cumbersome wiring.