ELUTENG Dual 40mm USB Fan with 3 Speeds Adjustable 5V PC Fan Max 5500RPM 40mm * 40mm * 25mm Mini Case Fan Quiet Computer Fan Compatible for PC, TV Box, Router, Xbox, PlayStation

40mm Mini DesignProduct size is 40 * 40 * 25mm (exclude metal frame). With a design of mini and lightweight, this usb fan can be used in narrow places such as computer hosts, routers, etc. It can also be placed in a small gap on a desk or computer to cool down electronic products.
Note: the 40mm fan is small and the speed will increase to achieve the heat dissipation effect, so some noise will be generated during use.; 2 in 1 USB FanCompared to a single fan, the latest upgraded 2 in 1 dual usb fans can cool electronic products from different angles at the same time, which is more efficient. With a large air volume design and an external hard disk box, it can also cool electronic devices such as smart phones, game consoles and personal computers in a few seconds.; Long Service LifeAdopt high-quality hydraulic 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.; Wide ApplicationThis 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.; Three SpeedsThe computer fan has a multi-speed controller that sets the fan speed to the level of three different gears.