This cooler is very strange. If you so keeps it in his hand and the fan comes on, then the wind blows a pretty face. Then one puts it on the desk and heard already how the fans are slower. Apparently they can not suck enough air to its full capacity to bringen.Dann provides you his notebook on it. AND? The fans are still slow !!!! From the original no-load power is not much left! The notebook is at least cooled a bit and the cooler looks good and seems properly processed, so 3 stars.