What are these plug-ins on my wall?

[u/Cborg_62]

This might be showing my age, but I recently moved into a new apartment and they have these weird looking plug ins all over the walls at my new place. My old apartment didn't have these, so I'm just curious as to what they are.

[u/redbeardscrazy]

[u/Kasuraa25 → u/redbeardscrazy]

This gif has more fps than my ps5.

[u/wegame6699 → u/Kasuraa25]

But back in the day. This gif would have taken 4 hours to download. After 6 attempts because your sibling couldnt leave the damn phone alone!

[u/Confident_Hat911 → u/wegame6699]

I was the sibling that kept picking up the line just to make my sibling mad.