Mine S is powered by a USB connection. However, the universal power supply is a useful optional if you’re using a lot of high-power consumption modules, which will also make the LED lights on the modules brighter. Otherwise, Mine S will automatically reduce the brightness of LEDs, saving energy.
Interchangeable power supply with EU, US, UK, AUS plugs
Input: 100-240V AC 50/60Hz
Output: 5V DC 3 A