Product Name: Notebook Cooler, Cooling method: air-cooled, Fan speed: 1000-4000RPM, Rated current: 0.5A, Air volume: 14. 3 CFM.1. Each corner of the radiator panel has fine chamfering treatment, which will not bring scratches to the book;2. Reasonable slope setting is more comfortable when using the notebook;3. Long- term use of the notebook, cooling will become a matter of course, the mainstream notebook due to the continuous increase in frequency, long- term use temperature is also getting higher and higher. The cooling pad can help our books stay away from the heat of high temperature and ensure the normal operation of the notebook;4. Directly blow the heat to the bottom of the notebook, force the notebook heat to blow out, and introduce cold air to increase the air flow at the bottom of the notebook, so that the heating elements inside the notebook are cooled, effectively maintaining the internal low temperature working environment;5. USB power supply design is directly connected to the notebook USB interface, without adding equipment such as sockets. Please allow 1- 2cm measuring deviation due to manual measurement.