Question about Ubiquiti UniFi Switch Flex Mini

Maybe this is a variant for you, but it is a more expensive variant. If I understand you correctly, you will not have a direct power supply at the installation site or you will have to do without one, which is why the POE variant. The following switch is supplied with POE once and outputs POE four times. This may be what you are looking for and need.

https://www.ui.com/unifi-swit...

Yes, you can connect a switch to the secondary port of an AC-Pro. However, the secondary of an AC-Pro does not output PoE, so you cannot feed the Flex Mini with the AC-Pro.

Thank you for the good advice. I had not found the UnifiFlex.