What purpose does a keyboard tray serve?
One of the most common problems with using a computer keyboard is that if the keyboard is too high or far away, typing on it can require an uncomfortable posture which can lead (over time) to pain and even injury. A tray allows adjustment of the input work surface (where your keyboard is located) to the appropriate height, rotation and tilt to accomodate an individual’s ideal neutral posture. It can also be used to accomodate multiple neutral postures which are required in sit/stand workstations. In many circumstance, a tray can allow an individual to bring the keyboard to a much closer, more comfortable and convenient distance from the body than would be possible if the keyboard is on the desk. A palm rest built into a keyboard tray can offer support for the palms during periods of rest from typing.
