Do Mac Mini with M2 or M2 Pro support DisplayPort Alternate Mode?

[hajime]

and what is the USB power output (voltage and current)?

 

[Longplays]

Googled this for you

Does my Mac support 'DisplayPort Alternate Mode' so I can use a KVM?

I'd like to buy a new monitor and have been looking at models that have an in-built KVM switch functionality as this would both reduce cabling/connections and enable me to use the monitor for home ...

apple.stackexchange.com

Indirectly addresses your 2nd queries.

https://forums.macrumors.com/threads/usb-power-output-of-m1-and-m2-macbook-usb-c-thunderbolt-ports.2356508/