The invention is a self-supporting, mobile or fixed, adjustable stand for items such a computer keyboard, mouse or laptop computer for use while sitting on a recliner, sofa or chair, standing, sitting or kneeling on the floor. The assembly consists of an articulated arm mechanism with supporting gas spring piston that allows the tray to be raised or lowered effortlessly. The arm assembly swivels sideways to allow the user to sit or stand more freely. The tray assemblies also swivel for added practicality. The stand may be movable or fastened to a floor or another firm location. Movable base assembly options are included and four adjustable foot pegs or casters may be used to level the stand perfectly to the floor and to improve the mobility. The stand can be used with a wired or wireless keyboard and mouse when viewing a large monitor or television from a distance.