Good product, (probably) plated Price

Small side fans that are attached to the normal fan, promised me not only little powerful, but also (due to the small diameter of the fan) to be very loud. So had a "subfloor ventilation" ago. After comparison of the different models, I decided on this and did not regret the purchase. The fans are indeed anything but quality, the chassis itself acts but great stability. The sound of the fan is clearly audible, but overall tolerable. Above all, the cooling performance is truly outstanding - the underbody of my laptop is downright cold in comparison to the room temperature. Therefore, the device fully meets its purpose. Whether one which - in my opinion quite hefty - ~ 22 is worth must be up to you.