However the USB port is used for charging/syncing the remote there are no old style PS1/2 ports anymore. If there is a controller for it it’s either going to use USB, or bluetooth. And like any other system, it can be used in any manner the programmers choose. Which in this case could be quite a lot.
Obviously you can’t just plug something in, it would be propritary. Or have drives coded into said piece of software.