* USB plug: This cooling fan can be powered through USB ports without an external power source. Just plug it into the USB port of electronics and tuck the wires aside
* Low noise: Ultra-quiet USB fans designed to cool various electronics and components. Lower noise can help you to deal with your business better and intently
* Dual-ball bearings: This cooling fan has a long-life span and can be laid flat or stand upright due to the dual-ball bearings
* Multi-speed controller: The speed controller of the fun keeps the electronics and components running at their ideal temperature and optimal speed
* Dimensions: 4.88 x 4.88 x 1.87 in. per fan | Max. Airflow: 52.72CFM per fan | Total Noise: 21dBA per fan. Package includes 2 packs