The answer is that you should be able to use any basic USB 2.0 hub that does have an external supply, as those that do not have an external supply are known to not provide stable power.
Amazon Basics 7 Port USB 2.0 Hub Tower with 5V/4A Power Adapter is a good example:
That and more is mentioned in this best practice guide → Zigbee network optimization: a how-to guide for avoiding radio frequency interference + adding Zigbee Router devices (repeaters/extenders) to get a stable Zigbee network mesh with best possible range and coverage by fully utilizing Zigbee mesh networking
Tips:
- If your computer only has a USB 3.x port then buy and connect the adapter via a powered USB 2.0 hub
- Using via USB 2.0 hub will in practice convert USB 3.0 to a USB 2.0 port and thus avoid USB 3.0 EMF
- A USB 2.0 hub that uses an external power supply will ensure power requirements are fulfilled
That is, not using an external supply to the USB hub is known to cause one kind of problem here. And using an USB 3.0 hub instead of a USB 2.0 is known to cause another kind of problem here.
PS: Note and be aware that the quoted above is almost formulated as The XY problem if it was taken out of context since you say that prefer one that does not require separate power input.
