The Kensington K60004US Underdesk Comfort Keyboard Drawer with SmartFit System is a keyboard tray designed to improve ergonomics and comfort during computer use. It features a retractable drawer that can be used to store a keyboard and mouse, and the SmartFit System allows for adjustable height and tilt settings to find the perfect typing position. The tray is compatible with most desk setups and can be mounted under any desk surface.