Can a monitor arm create a true one-cable docking solution?

Yes — with the right components. A monitor arm with an integrated USB-C hub at the VESA mount allows a single USB-C cable from your laptop to the hub, which then connects: the monitor (via DisplayPort or HDMI), USB peripherals (mouse, keyboard, webcam), and laptop charging — all through that single cable. When you dock, one cable click connects everything; when you undock, one click disconnects. This setup requires: a monitor with a built-in USB hub or USB-C input; a monitor arm with an integrated hub or a hub clipped to the arm; and a laptop with USB-C/Thunderbolt that supports display output. OfficeFurniture2go.com carries monitor arms compatible with one-cable docking setups — call 1-800-460-0858.