Electrical Component ID help.

[BrianG]

Could save some $$$ if this will likely be something you don't do often:

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For the socket, just use a servo plug for 3 of the pins, and remove a single wire/connector from another servo connector and just slide it on the 4th pin. Or, if you have an old PC case laying around, scavenge the power/reset switch and hdd/power led wires/connectors and use those.