The side panels to the HP Workstation zx6000 were designed to communicate a robust look and a sense of sophisticated power and speed. The side panels are easily removed without tools for unit upgrade. The unit can be used as a single desk side system (with the side panels) or as a multiple unit system in a rack mount configuration. The Workstation zx6000 is an out-of-the-box solution using the same base chassis for multiple configurations and models. By offering two configurations (rack mount and desk side units), a larger market was penetrated.