I have Dell Poweredge server with plastic blockers inside their ethernet ports. My problem is that I don't know how to take it out. You can see photo of the plug here:
I tried to pull them out, or to squeeze and then pull, but they don't move. I cannot find anything on the Dell installation manual, so it's probably not provided by Dell.
Did you see this kind of plugs and do you know how to take them out without risking to break something?