“The 3rd party USB-C PSU for a Pi 4 I got in a bundle failed after a couple of years, so I've bought a genuine Raspberry Pi PSU like those I've used without problems on my other four PI 4s.
My experience from the micro USB power supplies for older Pi's is every single 3rd party one has failed sooner or later, but I've never had a failure of the official ones since they came out. It looks like it is the same story for USB-C ones.,”
“I use these not only to power Raspberry Pi 4's but also to charge my phone, a use which it is excellent for as it has the power to do the job very, very well.”
“Perfect for what I needed. I bought a third party kit which kept getting undervoltage errors. This fixed it brilliantly. Goes to show having the official product makes a difference.”