What kind of RJ45 Jack is this? Never seen one in my life.

I am an old timer. I worked with Token Ring and Thinnet.

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But I have never seen below RJ45 Jack. I work at a Hospital and I replaced one thinking it is a damaged jack. I now realize it is a particular jack. Anyone know what type of jack this is? I would guess it has something to do with power delivery but the installation was prior to PoE.

https://imgur.com/a/U9rWZMX

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Notice how 1-2, 4-5, 7-8 pins are bonded together.