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It's not just USB 3, Thunderbolt 3 also has an interference problem. I had to get a 1 foot extension cable for my Logitech Unifying receiver plugged into a CalDigit Thunderbolt 3 dock to prevent my mouse from freezing. My wife had to do the same with her Unifying receiver plugged into a LG 5k Thunderbolt monitor.

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RF coex will always be an issue, and it's especially bad when you bury a dongle with a tiny inefficient antenna in a mess of shielded high speed data cables (thunderbolt, displayport, ethernet, USB, etc.)

I had to do the same with my MS sculpt keyboard and Lenovo wireless mouse.

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