Computer carts serve very different needs than computer desks. When mobility and easy transport is key, computer carts are your best bet. Traditional computer desks often have more space and optional shelving, making extended use easier and the work environment more organized. But the user need not sacrifice ergonomic support and comfort simply because he or she is using a computer cart. Retractable, articulating keyboard arms, LCD arms, and CPU holders can be fitted on most computer carts, customizing them and providing as much functionality as a computer desk.