Hello EmsTaty,

ET> According to 802.3af the data function of the wire AND PoE fucntion
ET> "can" coexist. Thus you need a G-Bit Switch with PoE function and if
ET> your (future) PI supports G-bit ... the splitter needs to do the same.

Every Pi 3B+ already supports GigaBit EtherNet at their RJ45 port.
It is only limited to 300 MB/s by the USB chip.
So the Pi 3B+ has sure faster networking than the older Pi's.
And of course you can also transport EtherNet data IPv4 and IPv6 by the Dual
Band WiFi at both 2.4 and 5 GHz 802.11 a,b,g,n,ac, or even BlueTooth.
Good luck.

Greetings from Henri.

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