Vilros Raspberry Pi 4 & 400 Compatible Power Supply (USB-C) with on/Off Switch

Works well for 3D printers

Powers the Raspberry Pi 4B plus accessory boards easily, and has a power supply switch allowing the user to turn the unit on and off without unplugging. Great price for the functionality.

Capable of running the pi in steady voltage and amperage.

I like the power switch

This is my favorite power supply for Pis. Powerful enough (3a), and I really like the switch. (Okay, I do upgrade it slightly by putting a label on the side of the switch to indicate On/Off).

Ive used the official Raspberry Pi adapter as well as this one. I like the fact that this has a built in power switch. Much more convenient than unplugging from the Raspberry Pi or from the wall!

I keep getting a low voltage warning and to check my power supply. :(

Its a power supply. Seems to work OK, but it has one big disadvantage IMHO: The AC plug orientation blocks adjacent plugs on standard multi-outlet strips. Its OK on a wall socket, but if you try to use it on an outlet strip, you lose half the outlets when they get blocked by the plug unit.

This does not have enough power for a pi 4. Even a basic pi, without anything plugged in, shows the lightning bolt, and if you plug anything into the USB, the pi just shuts down

Love the inline switch.