Well, I found a pinout chart online but they all stop at the C1000, and none show the C1200. Not the kind of thing I want to assume is the same. I sent an email to NZXT and cablemod but I doubt I'll hear back from either one.

 

Get yourself a volt meter. You can use the paperclip method to get the PSU to turn on and measure the output of the connectors from the PSU. Then you will have the pinout for that PSU and you can either find matching cables or make your own cables, or send the pinout to a place that makes cables and get them to make the cables for you.

 

I've been researching the same thing and believe they're the same as the other models. I haven't confirmed this as I'm dealing with a compatibity issue and haven't decided on a theme for my rig yet. But here's where I'm at. CableMod support is worthless and are incapable of actual support or knowledge. I posted on their reddit and emailed their support. I even figured out the pinout on my own as @Mergatroid suggested. CableMod couldn't pull up their own specs on the C1000 and just compare for me. NZXT however did reply and confirm that the pinouts are the same. Like I said I haven't had a chance to order cables as I'm working on some other issues, but if you order custom cables through CableMod's configurator from the C1000 (PA-Model) you should be good. You'll have to pick another PSU though in their configurator to order a 12VHPWR cable. I know the MSI models with the PCIE 5 options have them. I think these cables are standard so you shouldn't have an issue with different pinouts between PSU manufacturers. I would confirm this with a voltmeter before installing, or at least that's what I plan to do. Another option is I think moddiy.com sells custom cables for the C1200. I've never dealt with their cables though. I'm very tempted to use them as I've heard they'll customize anything through chat. I'd love to order a custom 12VHPWR cable with a 90 degree connector at one end with my own color scheme. Cuts out the need for the adapter. See attachment's for pinout and email communication from CableMod and NZXT.

 

Spoiler

I've been researching the same thing and believe they're the same as the other models. I haven't confirmed this as I'm dealing with a compatibity issue and haven't decided on a theme for my rig yet. But here's where I'm at. CableMod support is worthless and are incapable of actual support or knowledge. I posted on their reddit and emailed their support. I even figured out the pinout on my own as @Mergatroid suggested. CableMod couldn't pull up their own specs on the C1000 and just compare for me. NZXT however did reply and confirm that the pinouts are the same. Like I said I haven't had a chance to order cables as I'm working on some other issues, but if you order custom cables through CableMod's configurator from the C1000 (PA-Model) you should be good. You'll have to pick another PSU though in their configurator to order a 12VHPWR cable. I know the MSI models with the PCIE 5 options have them. I think these cables are standard so you shouldn't have an issue with different pinouts between PSU manufacturers. I would confirm this with a voltmeter before installing, or at least that's what I plan to do. Another option is I think moddiy.com sells custom cables for the C1200. I've never dealt with their cables though. I'm very tempted to use them as I've heard they'll customize anything through chat. I'd love to order a custom 12VHPWR cable with a 90 degree connector at one end with my own color scheme. Cuts out the need for the adapter. See attachment's for pinout and email communication from CableMod and NZXT.
View attachment 2610429
View attachment 2610428 View attachment 2610427

If it's an NZXT supply and NZXT says it's OK, then it should be OK.

Good luck. I hope you post some pics when you're done.