5
safe?
(lemmy.ca)
For questions about component-level electronic circuits, tools and equipment.
1: Be nice.
2: Be on-topic (eg: Electronic, not electrical).
3: No commercial stuff, buying, selling or valuations.
4: Be safe.
It supports those, but voltages other than 5V will only happen when an appropriate handshake happens. Just a USB-A cable to bare wires has no handshake and will be 5V.