Opolar LC01 Laptop Cooler Cooling Pad with Vacuum Fan (Rapid Cooling, USB Powered, Wind Control, Quiet Operation) Cool your latop in one minute by 10~40 F Degrees, which is far better than cooling pads Designed for laptops with air vent on both sides or rear; ideal for gaming laptops or systems that tax the CPU Wind speed is adjustable to manage the airflow and noise; USB powered operation, and extremely easy to install in few seconds One year replacement for defective product; 30 days no-hussle refund&return; friendly customer care provided by Opolar