Ethernet port plastic plug blocking port access on server

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?

Solution 1:

Those are PadJack Locks.:

_{(source: padjack.com)}

They can't be removed without breaking them. They don't come from Dell that way, someone else installed them. They're meant to be difficult to removed, and tamper-evident.

If I remember correctly the back end has a "top" and "bottom" that you pry up/down (apart) until it snaps. I could be wrong, it's been a while since I've seen them, so don't quote me on that...

Solution 2:

I have removed one of these using a drill and a few drill bits. Use around a 1/8" bit to drill a pilot hole, then a 1/4" to make it larger, then maybe a 5/16". Once it's large enough, you can just pry out the pieces with some needle-nose pliers. It's not for the faint of heart, but it did work. If I had to do it again, I'd probably try the paperclip method mentioned in the comments first.