This thread might help:
https://forums.servethehome.com/ind...-2-pin-satadom-power-cable.27014/#post-249294
In it, Forum Member
@BeTeP noted that the 3 Pin connector on his DOMs is:
All my DOMs are Innodisks - they use 3-pin Molex PanelMate 51146 Series (1.25mm pitch) connectors. I do not remember what was on the other side of the cables I got with the modules. I lost the cables long time ago because all my motherboards support power on SATA pin#7.
Thanks to
@BeTeP for originally sharing the info.
If your motherboard's 3 pin connector is the same, or another Molex type, you can find out where they are in stock on the Molex site (
www.molex.com) The 3 Pin version of the connector listed above is Molex Part 511460200 (Some sites may list it with a leading "0"). Enter that in the search on molex.com and click "Check Distributor Inventory". You can use that to narrow down by region.
Most of the distributor websites will have some sort of search/filter feature to let you find connectors in a family by pin count as well, so if you are lucky and what you need are 3 and 2 pin connectors of the same type, its easier to locate them.
I use Digikey, and at the bottom of the page for a given connector, they also list all the pins and crimpers that are compatible.
Once you know what connector you need though, you may want to search Amazon to see if anyone is selling one (or both) of the connectors you need with pigtails. That way you only have to crimp the other end.
Also, once you know what crimper type you need (assuming you don't already have the tools), you can also search those on Amazon. The parts sites, like Digikey, seem to want to sell you only professional tools. Honestly though, if you only plan to make a few of something, a cheaper tool that works along with some extra connectors/pins to accommodate mistakes and learning curve, is probably cheaper. If you do try, and if you aren't experienced with making cables, make sure you get some extra connectors & pins. Its hard to get it right first time every time, especially with small parts!