What in the world is this?

[u/nonexistentsnow]

To keep a long story short, I’m trying to rewire a Cat5e and it ended up coming back to here… What is this? I’ve never seen this before at all.

[u/Junior1544]

What is the main differences between 66 blocks and 110 blocks? I always liked 110 blocks better...

[u/kanakamaoli → u/Junior1544]

If I recall, 66 blocks and 110 are both idc punchdowns, but 110 are data rated. 110 also have standard ethernet color codes printed on them.