Questions about Exertis Connect Patch cable CAT. 6, F/UTP, PoE, halogen-free, white, 15.0 m Shielded patch cable with snap-in lug

Hello, PoE is Power over Ethernet, which supplies power to devices connected to Ethernet cables. Any cable can do this, but it looks very nice in the description. It's just like writing that a car also has an indicator. Wikipedia: https://de.wikipedia.org/wiki/Power_over_Ethernet