Can anyone identify this cable?

Hello,

Apologies if this does not fit the purpose of the subreddit, but I could not think of a better place to ask.

I found a few of these in one of our very/overdue-to-be-tidied comms cabs, installed before my time. As far as I can tell they’re Cat.6 T568/B, but why do they have a different pair on ‘display’ either end? The pic is of one cable.

Help sate my curiosity!