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Dongles are indeed not perceivably different than wired in principle. However, you may have more latency variability, or even unstable connectivity, depending on what adjacent usb ports are doing, due to interference [0].

I have had cases where dongles were practically unusable in my setup, up to completely losing connectivity when transferring data through an adjacent port.

[0] https://www.intel.com/content/www/us/en/content-details/8416...

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never happen to me in this year

maybe in 2012 as paper suggest, also millions of gamer also use these today

there is exist mouse gaming that have 4k,8k polling rate right now

You also want to have Nordic MCU specifically

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I have had issues with an otherwise decent 2022 computer, had to arrange usb connections in specific ways to avoid brief connectivity drops. It did not happen all the time, but it did happen. But the worst problems were older ones.

USB ports have probably better shielding nowadays. But even so, the protocols and radio frequency ranges are still the same, so if I do not see a specific test on that (measuring latency distribution while adjacent port busy) I would not trust it if latency was important, even if it "feels" the same. And not all of us have professional gaming equipment or otherwise of much better quality.

If adjacent ports are not busy there should not be an issue nowadays, probably.

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