And as we all know, Wi-Fi isn’t always that great.
If you run that data over a wire, on the other hand, it’s unaffected by interference.
And that’s the best result.

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Ethernet is also more secure.
Wireless networks can also get congested.
But Wi-Fi is just so convenient.

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Who wants to tether themselves?
This will make a massive difference to the quality of your video calls, for example.