I have 2 wire cable in my wall to which I can connect 5V power supply at the other end (no way to replace it). Which connector is correct to power it from?
I had to use the USB sockets for the same on mine, one in the middle of the board. I bought some USB-C right angle to bare wire cables.
Mine was a 12v power and had to use a 12v to 5v buck converter near the panel, just be wary of the voltage drop if the wire is long or thin.