USB FAN 5V: 5V 120mm fan for cooling various electronics devices such as router modem desk computerPS3 PS4 Xbox ,it can reduce the components temp to prolong unit working life. SPECIFICATION: Rated Voltage: 5V ,Rated Current:0.25A, Speed:(1100RPM-1500RPM),NoiseLevel:(20dBA-36dBA）,Airflow:(25CFM-45CFM). 3 SPEED CONTROLLER: 120mm fan with speed controller, you can adjust the speed from high speed 1500RPM(45CFM) , medium speed 1300RPM （35CFM), low speed 1100RPM（25CFM)to get different airflow and noise level. DUSTPROOF FAN FILTER:120mm USB fan with dustproof fan filter to keep your devices clean. PACKAGE INCLUDE: The package includes 1x120mm USB fan, 1x dust filter mesh cover and 4x screws, which can be widely used for broadband cats, wireless routers, TV set-top boxes, computers and other devices that need cooling. 120mm 5V USB Powered PC Router Fan with Speed Controller High Airflow Cooling Fan for Router Modem Receiver DVR Playstation TV Box and Other Electronics