Features: Brand new and high quality Is Your Router Overheat Easily ?: It reduced the temperatures of your router by a substantial amount. Whereas before the thing was almost too hot to touch at full load, it will be almost cool after you got this item. Network speeds are commensurately increased. Temperature reduction provides an expected longevity extension and higher performance of a critical network component. These fans are overall very helpful for devices that get a bit hot and start to throttle down. Accessories Information:The fan has a USB connector, Added metal grill between units. Speed selection switch is very durable. With dual ball bearing, long life with 50,000 hours. It really overcomes the problems of short life and unstable operation of oil bearing. Variable 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. Enables the fan to be powered through an AC outlet. Good DIY Cooling Solution:It works great for DIY cooling fan or as an additional cooling fan for your gaming needs. Such as router, cabinet, x-box, SSD, Modem, DVR, Receiver, Streaming boxes, Security Camera NVR, andriod box, stereo, T-Mobile gateway. Good balance of quiet and airflow. Moves enough air at low speed to keep electronics cool. Please contact Seller If the product has any quality problems. Specifications: Size: approx. 120x120x47mm Bearing Type: Double Ball Bearing Rated voltage: DC 5V 2A Fan speed : 1500RPM Power connector: USB Type: Single Fan, Double Fan(optional) Cable length: approx. 1m/39.37in Package Includes: 1PC x 12047 Cooling Fan note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!