Dotcomformat

Hi, I searched the archives but I could not find an answer to this question.  How do you guys power DIY projects such as using PCB's from MFOS?  Can you solder the proper dotcom connector to these PCB's?  If not, do you have wires coming off of the PCB that you terminate into a connector?  If so, which connector do you use and where can I purchase this connector?

Thank you for any help that you can give to me,

Henfield.......................