Your talking about the 4 pin molex for HDD's & CD/DVD readers right
http://www.playtool.com/pages/psuconnectors/connectors.html#peripheralDon't draw more than 100 watts per CABLE,not per connector.
I used this to run 5 little gridseeds,each GS is about 10 watts OC'ed,so each PCIE could run 20 of them:
You can get the cable from
Cablez I made my own 4 pin molex cables to run them too.I bought these:
http://www.amazon.com/gp/product/B0058RLD9C/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1& these (take your pick):
http://www.frozencpu.com/cat/l3/g51/c387/s999/list/p1/Connectors-4_Pin_Connectors-Molex_-_Male-Page1.htmlBe sure to add the pins to your order,they DON'T come with them automatically
I got my wire from old PSU's & ran 5 per cable,can't find my pics of that cable
Zich is correct...YELLOW is 12 volt +...RED is 5 volt +...each has it's own black or negative (keep them paired).
When making your own cables,you do not have to add the red 5 volt & it's black cable,just the yellow & it's black cable
BTW,I have cables left over if you want buy them