PSU Rails and cord match ups

Captain_Xeno

Honorable
Oct 25, 2013
29
0
10,530
when choosing a psu i am having problems understanding the 'grid' displaying the amps for different rails, i was wondering if anyone could tell me how to match the rail to the chord (i.e. pci-e or 20+4pin) i understand the basic math behind psu's i just cant match the chords
thanx everyone :)