A keyboard tray is a movable platform designed to hold a computer keyboard and mouse, allowing users to adjust their typing position for better ergonomics. These trays can be mounted under a desk or attached to a stand, helping to free up desk space and reduce clutter. Using a keyboard tray can promote a more comfortable typing posture, which may help prevent strain on the wrists and shoulders. Many trays are adjustable in height and angle, making it easier for users to find the most comfortable position while working at their computer.