Just a quick update on this. I plugged a small usb stick with some video files on it and the roku tv had no problem playing anything. I don’t have an external ssd with a usb right now so I can’t try that. I don’t have think it should be a problem though, I looked through the documentation on the tv and it said it can power external devices from the usb. Looking forward to trying with a full size drive.
Thanks again for the advice.