Can be positioned to lie flat or stand upright to cool various electronics. * Features eight anti-vibration rubber mounts, dual fan guards, and a 6-foot cord with an on/off switch. * Able to be powered by wall outlet or USB port, a plug adapter is included. * Contains an additional USB port, up to 4 fans can be daisy chained to share the same power source. * Fan Size: 4.7 x 4.7 x 1 in| Airflow: 52 CFM| Noise: 23 dBA| Bearings: Dual Ball