Power multiple electronics from 1 power source

[The Master]

If you want to power multiple devices in parallel (which is most likely) then the supply voltage must match the device voltage and the supply current must be at least the total required by all devices. 5 devices at 12V 500mA will require a supply capable of 12V 2500mA (2.5A).

[koossa]

Thank you very much, I really appreciate it!!!