Cooling Fan for laptop / tablet / smartphone / User The LapCool CrossFlow is a unique cooling device with many uses. It can serve as a Table Top Fan, Laptop Cooler, Tablet/Smartphone Cooler and stand. This Cooling Fan uses any USB Type A port for power making it a convenient fan wherever you may travel or just sitting at home. Place vertically or horizontally to serve a different purpose. The Fan is portable, quiet and speeds adjustable.