Description: N19 has offers a 140mm cooling fan, which can not only ensures big airflow but also can make sure that you can experience the silent operation. Aluminum Mesh Panel N19 uses aluminum extrusion panel dissipate heat efficiently, provides cooling sensation while using. Angle Design In order to ensure users’ better experience, N19 adopts two angles for view for most comfort in use. Specifications: Ergonomic design with 2 viewing angles available 140mm fan runs quietly and intakes outside cold air to cool your notebook Big area aluminium mesh allows optimal airflow to cool the notebook efficiently Powered by USB connector with USB pass-through and Compatible with 14" notebooks and below If laptop is getting overheated compared to efficiency of fan than cooler doesn't support the overheating laptops or Notebooks