Vin power input connect way

Hi I want to connect vin power to usb-a male connector,but i’m not sure which one is DC5V in .
The picture has marked 2pin for DC5V and 2pin for GND.

Hello, Vin connector has two pins for GND and two pins for 5vdc. This scheme is seen in some laptops and Chromebooks.
Ideally, connect all pins in the connector to their respective connections.
See here for a practical example.

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