[20W 5V 4.0A] Raspberry Pi 4 Power Supply, iUniker 20W USB C Power Supply with ON/Off Switch 5 V 4 A Raspberry Pi Power Supply for Raspberry Pi 4 Model B 8GB/4GB/2GB/1GB (UL Listed)

It is powerful unit and works well

It's hard to say much about a power supply. One very handy feature of this one is the built in power switch. It is nice to be able to unplug an SBC for adjustments without having to unplug the power supply. Anything that simplifies things is a big plus in my book.

Works fine although the Raspberry Pi 5 does complain that it cannot deliver the full 5 amps that a Pi power supply can deliver. The 4 amps this delivers seems sufficient, I'm having no problems running a Pi 5 8GB with a cooling fan and I also have an NVMe hat and a 2280 256GB NVMe.

This power supply does not overheat and powers a Raspberry Pi 4 that is constantly on. Power switch on the line is a nice feature and is located only a few inches away, some other brands have it too far. Will definitely buy a few more to replace some other Pi power supplies.

Sadly the pi does not conform to usb c phone chargers but this pack fixed my gaming issue due to power. The switch on the line was useful.