A fair number of controllers have DMX loads built in. I don’t use them. I am always worried id leave a load jumpered when I extend the DMX line further out.
Either way you need to get to remember to add a DMX load at the end of each run.
With the rise of more RJ 45 being used for DMX wiring, especially in this hobby, I thought it was time to make a couple of RJ45 loads. They are a cinch to make and give immediate confirmation there the load is in place. Also as the load is plugged into the “Out”, you can’t get any loads left jumpered mid-stream.