Connect land CL-NBK68023 gaming notebook cooling stand with dual 140mm fan helps reduce the operating temperature of your laptop and allows for steady airflow around it. It uses active cooling methods to distribute air quietly and evenly under the base of your laptop. Powered by your laptop"s USB port, the single silent power saving fans will hardly have any impact on the battery life. With tilted base, the notebook stand provides a most comfortable typing angle. With 5 Adjustable height, unique raise and lock stand mechanism provides ample clearance and air flow beneath the stand.