Cooler Master &iexcl;&ordf;&iexcl;&ordf;New design USB Super Ultra Thin Fan Laptop Cooling Pad Notebook Radiator Silent Fan 4 Fans 2 USB 2.0 Ports Notebook Laptop Computer Cooler laptop cooling pad 14 15.6 laptop 17 mount pad fan base plate mute&iexcl;&ordf;&iexcl;&ordf;Blue LED Fan Intimate elevation design: Prevention stiff neck, comfortable and natural point of view, is more conducive to the cervical spine stretch retractable, so that the health of human knowledge to be fully integrated into the design Speed lasting heat dissipation: comprehensive care books of various properties, so online shopping spike, no card machine game Rush pressure, but also to protect the hard drive data, prevent aging of components 2 USB 2.0 Ports, No need any installation,this radiator USB cable interface must necessarily be directly plugged into the computer USB port (phone charger plugged in USB port or USB splitter will generate fan rotation is not to force only bright lights dimmed and so do not turn) Built-in fan speed controller Supports various sizes including 15 inch and 17 inch laptops