Single vs Multiple Rail PSUs

 
 
 

Comments


Anonymous

So hang on, if a PSU has 2 40A 12v rails what does that mean? I understand that if a PSU has 4 12v rails at 20A each that it will have a total of 80A, but if a PSU has 2 12v rails its still multiple so why the 40A per rail instead of the 20A limitation?