Ergotron WorkFit-S attaches to a desk. Adjustable to either sit at your desk or stand. Provides separate platforms for keyboard and laptop or monitor. The way the keyboard sits below the desktop height allows for better ergonomic comfort when sitting. Price firm. Retails for over $800 online. Google the name of the unit to learn more Excellent shape. Photos are from website as I forgot to take photos before removing from my desk.