“This fixed my undervolt throttling issues I was having using an old phone charger. Now using the official charger there is more than enough power and the system is stable again - a worthwhile investment to have a bit of confidence back and a solid system.”
“Excellent little power supply at a very good price. Not only perfect for the Pi, but, being a USB-PD power supply, also a good, reasonably fast charger for my phone. It runs cool and it does not whine or hiss or make any other noise.”