SABRENT FAN-CLFN Executive Notebook Cooler Pad with 3 Built-in 60mm Fans for Laptops/ Notebooks Keep your notebook/ laptop COOL! USB Powered with on/off switch. Super Quiet. Light weight. Works for all laptops This cooling pad eatures three built-in 60 mm fans for easy thermal heat dissipation, keeping your notebook from getting too hot. Simply plug into your USB port! Keep your laptop cool can prevent all sorts of undesired symptoms caused by overheating, for example, locked or hung programs. It can be used either as a buffer for mobile users to isolate the hot bottom of laptop from your lap or keep your laptop cool if it is used as your main computer sitting on a desk running most of the day. weighs only 1 lb, yet efficient for heat dissipation. It measures 11.8"x9.1"x0.55" (30x23x1.4cm), should easily fit in most laptop bags when you are traveling. 3 fans once turned on will quietly whir the heat away from your laptop at a rate of 3000 RPM, producing 30 CFM of airflow. Hot air is sucked in from the bottom of the laptop and exhausted through the opening on the rear. Three green LED indicates the working status of the three fans. The laptop cooler comes with an On/Off switch on the front of the cooler. You don"t need to unplug the USB plug every time you want to turn the fans on or off. Specifications : ? Front fan On/Off switch for easy access. ? 3 quiet fans for quick heat dissipation. ? Powered by USB bus, No additional adapter is needed. ? Light weight (1 Pound), and with only 0.5" (14mm) of thickness, easy to carry. ? 3 Green LED indicator to help detect fan failure or malfunction ? Compatible with all types of laptop with USB port. ? Three (3) built-in 60 mm fans ? Air Flow: 30 CFM ? Speed: 3000 RPM ? Noise: 21 dBA ? Current: 0.26A ? Voltage: DC 5V ? Power: 1.3W Package Includes : ? Executive notebook cooler pad ? USB power cable