Certain times through a print I noticed the cable catching on the corner of the power box, with a slight bump as the bed pulled it over. This clip just ensures a forced direction for the cable which does not interfere with the power box.
The lid for the power box was recessed below the edge, I took it off to push the clip on, printed in PETG as that was already spooled.
The author marked this model as their own original creation.