“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.”
“I thought I'd try to use a power plug that I got for a Rpi4 ... it worked (sort of) but I got warnings displayed and I planned to use power hungry usb stuff .. So I got one of these .. It's not that expensive and gives trouble free power.”