NewHail Quiet Dual 140mm Router Fan Cooler with L/M/H 3-Degree Speed Controller, DC 5V USB Powered Cooling Case Fan for Router Modem Receiver DVR PlayStation TV Box

["【Variety used】This EMC and ROHS-certified 2 in 1 Dual USB Computer Cooling Fan is used for receiver, cabinet, DVR, playstation, TV box, fridge, incubator, aquarium,ham radios and more that requires cooling or ventilation; or as a replacement fan.","【Silent】 Each computer case fan equipped with eight non-slip feet to prevent the router from slipping off, which can absorb the noise generated by the fan's vibration and surface friction, and increase the height to better dissipate heat.","【L/M/H 3-Degree Speed Controller】 The variable speed is great for turning the speed up or down to your noise comfort level. It is cycles from high-Medium-low and off speed mods.","【Convenient 】The fan is suitable for devices with a USB interface, No matter where you are, just plug it in and use it with 190cm / 74.8 inch Cable.","【Dual ball bearings】 Durable dual ball bearings have a lifespan of 60,000 hours, and allow the fan to be flat or upright and easy to use."]