@Adex1 

Hi, thanks for posting question here.

According to your needs, only Deco models can meet.

First, different Decos can work together to set up Deco mesh network and you may refer to this guide to know more: Can different Deco models work together?

And here is the list that Deco models have USB port and it is suggested to check their specifications to make sure it is USB 3.0 port and the models are sold in your local markets.

If you are interested in setting up Ethernet Backhaul, please follow this guide:General questions about Ethernet Backhaul feature on your Deco

  @Adex1 

Hi, it is pity, the list I shared is all the models that support USB 3.0 port and it seems that all of them are recent except Deco X73-DSL.

USB port is a newer addition compared to other functions, so some older Decos models do not support it.

  @Adex1 

Hi, if USB port is not necessary for you anymore, you will get a lot of choices. 

It is still suggested to look at the models on the official website. I think the Filter tool is very useful to choose according to your need.

And you can see Deco P9 belongs to Wi-Fi5 generation under Wi-Fi Standard, so Wi-Fi 6&6E&7 generations are more advanced models.

But please note, Deco P9 is special, as it supports Powerline backhaul.  If it is a necessary feature for you, this guide should be helpful: General Questions about the Powerline or PLC Backhaul Feature of Deco