The cooler comes with a USB connection cable - so get the 5 Fan Power. A USB connector is behind free, thus you lose a USB port - a sensible solution, I think.
Easily accessible button rear right allow Auswhal of cooling stage 1, 2 or. 3
- At level 1 is a quiet and pleasant cooling runs only the large fan, thus.
- At Level 2, all run the 4 small fan.
- The level 3 can by activating both buttons are set, 5 fan then ensure orderly passage.
This stage cools best wind noise can be heard. These disturb while gambling, watch movie or listen to music not. A secure fit my laptop is Duch a wide rubber bead reaches at the pad edge. The angle can be changed thanks to 2 stabilizing feet.
My laptop is the gamble no longer hot, so full marks and a strong buy recommendation!
Hope to have helped.