Good qualities, very convenient

Used on a laptop 17pouces, there is still room.
Has a small knob on the side to adjust the speed of all fans.
On my laptop gamer powerful but very hot I performed two operations: dismantling to clean and remove a "carpet" of dust that was put behind the fan grille + using this cooleur. Temparature increased from 67 degree (max 91 times before the PC emergency stop) to 41 degrees. Good dust certainly was for many. The fans are really quiet more than the laptop anyway. The inclination (fixed) is useful for better typing on the keyboard. 3 fans are adjustable depending of the hottest areas of the laptop. I do not regret my purchase. The ones I've seen in stores seem expensive and less practical.