I have the fan now 2 days use. My son has a PC game without any problems can play a long time without my Laqptop crashed. Superclass, previously without a fan no 5 Minutenn and already had my laptop overheated and crashed. The slanting through the rack, I personally find quite good, but is a matter of taste. I was wondering what was delivered for nearly 23. In my view, a good product, could yet have one, two USB ports, often intregiert as with other fans. The Drehvorichtung is also a great idea. The relatively small fan, does a good job and by the slant, the hot air to escape effectively. The product I would buy again from today's perspective.