This kind laptop Cooling Pad with the mesh design and One Big Fan (160mm) spinning at adjustable speed from 1000-1400 RPM, greatly dissipate the heat from the laptop, enable it in good working condition, and prolong the lifespan of your laptop.Laptop cooling stand just plug in the USB port of your laptop to use.Equipped two USB 2.0 ports for data transmission or connecting other devices, package include one USB cable for you. Slim and lightweight notebook cooler stand (About 1.35 lb) , allowing you to store it in your laptop bag and take it with you whenever you go.