Adapter for connecting two sources in the rig

Only for joint control of TWO sources.

Connection
FIRST SOURCE:
1x 24pin plugs into the motherboard.
1x MOLEX 4pin plugs into the adapter.

SECOND SOURCE:
1x 24pin plugs into the adapter.

After turning on the FIRST source, the entire PC is turned on, as well as the SECOND SOURCE, which, for example, can only power additional graphics cards.