Do you want to provide Power over Ethernet (PoE) to an Ethernet device/network? If so, at minimum, the dongle would have to be designed to transmit DC power from whatever power adapter you are using. This seems pretty unlikely if you are using a standard USB-Ethernet adapter, unless it was specifically designed to provide PoE.
Do you want to connect an Ethernet based network to an electrical outlet to be able to utilize the wiring in your house or greater electrical grid to communicate data? If so, the dongle or adapter would need to support Power Line Communication (PLC). Your expectations for data networking over in-house electrical wires or the electrical grid servicing your area, would need to be extremely basic and would require more hardware to connect devices to data being shared from other electrical outlets (or maintain signal over the grid).
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No, but close! https://en.wikipedia.org/wiki/Power-line_communication
For anyone else that needs it, there’s also stuff for co-ax. Some cable guy went nuts putting coaxial cable into just about every room of my new (very old) house. I seriously considered MoCA for a bit, but wifi is working well enough for the moment.
https://www.techreviewer.com/learn-about-tech/ethernet-over-coax-a-complete-guide-to-moca-adapters/
POE
EOP
you need to use a crossover cable to get that to work
Power line networking is a thing so why not?
Curious to see what the packets are saying from a packet dump.
How do the pin outs on the USB line up?
When doing this the old fashioned way, you wire the transmit pins on the RJ-45 to 110v AC HOT and the receive pins to common.

(That’s an etherkiller, don’t make that, it will fry any networking hardware you connect it to)
My ex did that in college with her ps4, and I won’t lie, I was impressed that the latency was so low for such a shitty apartment
Yes, it will give Power Over Ethernet to whatever PoE device you plug it into.
If your goal is to burn your house down, probably.





