If you wire 12V and 5V together, the difference is 7V. If you literally connect the two wires to each other, the two 12Vs won't really care.

3) Provide a secondary wiring system in all new houses at 12V DC based on the new plug. 4) Revise our current wiring codes to reduce the number of 110V outlets and circuits required .

All the other plugs coming out of the power supply—called Molex connectors—are for drives, and they provide +12V (yellow) and +5V (red) power, as well as two ground wires (black). Types of ...

Wiring doesn’t have to be a problem. For the majority of wiring work it comes down to common sense, patience, and a bit of knowledge about how 12V electrical systems work.