AICHESON S035 laptop cooler is special designed to cool down up to 17.3 inch laptop. Wave metal mesh, 1000-1500RPM 1 large computer fan and 2600-3000RPM 4 small fans, flip-up mat, 4 ergonomic stand height settings, 2 USB ports, adjustable air flow wind velocity | This laptop fan cooling pad can accommodate laptops up to 17.3" on desk use. The cooling pad for laptop has a large central fan with two smaller fans on each side (5 total fans). The upper of the laptop fans stand is built with metal mesh, and the sides and bottom are plastic | A metal bar for ergonomic design at the bottom provides an elevation mechanism, 4 adjustable stand heights for a healthy life. A flip-up high-quality grip at the bottom of computer cooling pad surface keeps your laptop from sliding off when it is elevated | Two USB ports and a switch that turns fans and lights on and off (The greater you turn, the faster the fans run and the brighter the blue LEDs get). A USB-to-USB cord (approx. 1.5ft) is provided to connect the laptop to the notebook cooler for power | The computer cooling base can help to raise height from 2.4" - 4.8", and the angles is available to be adjusted from 7.5 - 21.5 degrees. Help to relieve neck pain caused by prolonged pc use and incorrect posture.