Toughbook 73 is a rugged sized business computer featuring the most advanced wireless connectivity options in its class. The Toughbook 73 provides heretofore unheard of connectivity and convenience options in an executive class notebook computer. In the Toughbook tradition, the Toughbook 73 is engineered and built by Panasonic to provide maximum reliability and performance for power users on mission critical assignments. Business ruggedization features include a full magnesium alloy case manufactured in Panasonic's own state of the art casting facility, a shock mounted and isolated hard drive, a proprietary cooling system incorporating an optimized heat pipe and remote heat exchanger, reinforced USB and PC Card connectors, reengineered and upgraded port covers, and protective ribs on the case bottom. A quick release lever provides access to the unit's hard drive bay and makes user compliance with corporate and public agency security regulations requiring separate storage for notebooks and data devices easier than ever before.