A cable chain mount which includes mounting for a DB25 connector.
I have included some versions which I can't use because I have external bracing on the bot.
I will be using version C.
This mates with
thingiverse.com/thing:40918
or
thingiverse.com/thing:11978
The chain sticks out on the left side of the bot and the connector is on the front. Mine will have the mating plug/socket with the cable pointing up.