|Thanks. So, the console is for an additional monitor if you want one then|
Without a better view of the unit than I could find online it's hard to answer this question. I suspect though, this is where the monitor for the KVM itself connects. As you've pointed out, it doesn't make a lot of sense to plug another monitor in.
As for the power adapter, you should see a label on the device somewhere (usually near the plug itself) that details the adapter. Something like the following:
Normally they'll list the input/output etc as well so you know exactly what type of power adapter to buy.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.