Mains Power
Some recommended mains power supplies for Cup Compute:
Ikea SMÅHAGEL
SMÅHAGEL 1-port USB 5V 1A charger is available at VERY low prices worldwide e.g. in Australia only $5 as of 2025-06-17:
Source: Ikea AU
This power supply has a very safe design at a very low price:
Reverse engineered schematic:
Source: Big Clive