Hi Does any know which PSU that say on dual/multiple +12V rails but actually the multi +12V are combined or the shared the same wiring etc.

As dual/multiple rails are so prevalent, I find it hard to find one that has a single rails which has high amp which is mid range (not that expensive).

I am looking for ~30A for the +12V and high amp for combined +5.5V and +3.3V (not lesser than 28A) as well. Something where the max output for +5.5V and +3.3V is above 230W.

Appreicate your advice. Thanks in advance.