“If you're after a USB supply for your Pi, get this and don't make do with old phone chargers or other supplies you have lying around. You'll realise it's false economy after the 20th mystery error message, or reboot, or freeze, or drop out. The Pi and the Pi4 in particular MUST have steady current delivery and consistent voltage - which this delivers. If you intend to include the Pi4 in an audio application then I'd try to avoid the USB power circuit altogether, but that's another story.”
