Does anyone know where I could find the wierd PSU-side plugs for the Corsair AX series?  I have an AX650 and I want to make some custom length cables.
 
Thank You,
 
~Fus

I beg to differ!  After a bunch of digging and a few ordered parts later....   It looks like some are Molex compatible while others come from funky Taiwan suppliers. 
 
Seasonic X- / Corsair AX- Series Plugs:
24pin Connector (ACTUAL?)
-18pin (9x2) - Young Yak YY-5700-H 18 (?) - http://p.globalsources.co...EC/913/K1048510913.pdf
10pin (5x2) - Young Yak YY-5700-H 10 (?)

24pin Connector (COMPATIBLE)
-18pin (9x2) - Molex Mini-Fit JR Series 5557
   -Black:  50-36-1668
   -Clear: 39-01-2180
   -Ivory/White: 39-01-2185
-10pin (5x2) - Molex Mini-Fit JR Series 5557
   - Black: 50-36-1671
   -Clear: 39-01-2100
   -Ivory/White: 39-01-2105
 
6pin Peripheral (3x2)  - I havent found yet, but if you cut out the 8-10 & 17-20 pins on an ATX 20pin, it matches.
   -ACTUAL(?) LEOCO 6740S-06-M00-(??) - http://www.leoco.com.tw/p....php?id=47&lang=en

8pin EPS (4x2) - Like above, cut out pins 8-11 & 20-23 on an ATX 24pin, it matches.
 
12pin PCIe (6x2) - pins 1-6 & 13-18 on ATX 20pin

I am still loooking for official part numbers.
 
Available at DigiKey, Mouser, and Newark Electronics.
I guess I'll work on the other connectors next and edit/post as I go.
 
~Fus

I know this is an old post, but I came across it in my search for a power supply connector.   Perhaps old news now, but the 6 pin (2x3) connector is a Molex Jr Fit (part#0455590002).  They can be purchased from Amazon (expensive) or from DigiKey.