Review on 🔌 LotFancy 5V 3A Power Supply, Wall Charger for Raspberry Pi 3 B+/2 Model B/A+/B+/Zero, Bose SoundLink - Micro USB AC DC Adapter with On/Off Switch by Jeff Apel

This power supply works well with my Pi 3 B+ model. I also ran my own voltage tests on the RPi's GPIO; The 5 volt and 3.3 volt pins receive the specified voltage. So the power supply works as advertised. I've only used the RPi a couple of times, only about 1 hour total, so I can't comment on the long-term viability of the adapter. The built in on/off switch is a great feature and the length of the cord allows for more flexibility. search RPI.