Aluminum 14-17-Inch Laptop/Notebook Cooler Pad with 2 Fans. Slim and smart with large, high-performance and quiet built-in 2 fans. Draws heat away from Notebook. Plug and Play. Powered by USB port. Light weight aluminum housing for thermal heat dissipation. Aluminum Housing 13-Inch x 10-Inch x 1.5-Inch (338mmx260mmx2mm). Fan Dimension: 2.5-Inch x 2.5-Inch x 0.75-Inch (60mmx60mmx15mm). Fan Bearing: Ball Bearing. Fan Speed: 3200-3500rpm. Air Flow: 40CFM. Noise: 25dba. USB Power Adapter: 5V, 0.85A