This is a vertical stand for the 2-port USB-C hub from Satechi (https://www.amazon.com/dp/B07RH8L9GV). I was tired of the strain on the main cable when it connected to my laptop, so I built a little vertical stand. Works a charm.
Note that the orientation of the hub matters: if an HDMI port is blocked, flip it around.
The author marked this model as their own original creation.