Just Mobile Aluminum Cooling Bar (CB-200) All solid aluminum construction. Highest quality aluminum construction. Provides more comfortable typing experience. Cooler and quieter operations. Fits most Mac or PC notebook computers. Convenient cable management. Style that complements your home, office or studio. Highest quality aluminum construction Improved typing comfort Cooler and quieter operation Highest quality aluminum construction Improved typing comfort Cooler and quieter operation Fits most Mac or PC laptops Winner of an iF Design Award