After I have tried several cooler for my laptop and this anyway because of overheating after only a short time abschaltete I was looking for something better. When I went to the Amazon HAVIT F9 G & U Mini Vacuum USB Cooler became aware because of its good reviews. Ordered and tried. Something loud it seemed to me, but I wanted to see if my laptop is no longer abschaltete. Now after a few weeks of use, I have a very good test result, it works fine, my laptop does not switch even under continuous load from because of overheating. Now I can HAVIT super cooler all Recommend having a Labtop overheating problem. At the running noise, I also got used to and want the part not to miss. Therefore, full 5 stars for the class product.