“It seems to do the job fine. It would be useful if it had a switch I suppose - although the RPi 400 has soft power on, that doesn't always seem to work when I shut it down from OpenBSD. Raspbian seems fine. Otherwise this power supply works though.”
“Some other power supplies fail to give enough power to the pi3a+. This one gives enough power and can run the touch screen at the same time. (with a c to micro USB adapter)”