Output voltage for Elite

I am researching a couple of upgrades to my Elite CNC. Some of which require power. I have done a quick search on the output voltage but did not find a definitive answer. Based on what I did find it appears to be a 36V unit that is stepped down to 24V. So my question is if I can leverage it to support additional external options such as a tower or a 4th axis? Or will i need to invest in a secondary power supply?

Thanks