[Tomdarkness]

I'd be curious about this as well, I have one of these Logitech dongles and if I plug a USB3 device in the port next to it (say a SD card reader or external drive) the logitech device, my mouse in this case, becomes basically unusable due to the interference.

[greggsy]

I use a short usb extender to get around this issue with my Bolt receiver, but the regular Unifying ones tend to be fine.

[hypercube33]

Intel NUCs (I didn't note what models) have these same issues and I suspected it was something to do with the USB3 ports interference

[Zetobal]

Ferrit beads also work quite well.