Ergotron WorkFit-A with Suspended Keyboard, Single LD (24-390-026) Keyboard can be positioned below desk surface for ergonomic comfort.Keyboard Tray Dimensions:27.1inch W x 10.1 inch D. Simultaneously lift keyboard and LCD screen to proper height Fold keyboard up and swing arm and monitor out of the way when you need the desk surface On-demand sit-stand workstation. Improve your energy and productivity by standing or sitting as you work, and then switch positions whenever you choose. Keyboard can be positioned below desk surface for optimum ergonomic comfort Easily and simultaneously lift keyboard and LCD screen to proper height for unsurpassed ergonomic comfort Safe, easy to use simple installation and effortless operation Fold keyboard up and swing arm and monitor out of the way when you need your desk surface Included work surface provides ample space and quick access to a tablet computer, phone or task-related items