Boutique gaming PC maker MainGear on Monday announced a new line of what it describes as “personal supercomputers.” The Shift, a large desktop built to user specifications, runs at up to 4 GHz and features its a liquid cooling system. Prices begin at $2,199. MainGear has designed the Shift line to exploit the natural behavior of heat, according to the company. The internal components have been rotated so that all heat is radiated through the top vents and cool air is drawn in from the bottom. The case has large ventilation grates and inlets for increased air flow.