Cooling Fan with AC Plug- Hydraulic bearings have a lifespan of 50,000 hours. It 3V to 12V multi-speed controller, increases maximum axial fan speed and powers the muffin fan from an AC outlet. Just plug it into an outlet and start the cooling fan Powerful fan-The router cooling fan running speed is 700rpm to 3000rpm, generating a constant and continuous flow of air keeping everything cool and temperatures down and if there is a need for more air flow the included dial controller allows you to increase the air flow The Fiber Modem fan with protective grills on both sides to keep fingers away and protect the normal operation of the fan blades.Cooling fans with feet, allowing an open layer underneath to collect air and protect the surface where you put it. It is easily connect the speed controller into the fan' s terminal and the plug into a wall outlet Cooling fan used to DIY cool various electronic devices such as cigar humidor, cooling cabinet,TVs, chassis,amplifier,mondems, routers, computer case, ps4, amplifier, fireplace, kitchen cabinet, window, server, humidifier, mushroom ,workstation, grow tent, Reptile Enclosures and more. Cooling fan with variable speed controller mining rigs rely on the cooling power of fans for optimal operation Plug and Play- With its standard two-prong wall plug, the speed controller effortlessly powers the fan through any AC outlet