Adapter

Due to the higher power requirements, the Raspberry Pi 4 requires a 3.0A USB-C power supply. The Official USB-C power supply is specially designed and tested for the Raspberry Pi 4.Compatible with Raspberry Pi 4 only. Not compatible with Raspberry Pi 3 B, B+, A+ or Pi Zero...

This is the Official 2.5Amp 5.1V power supply for Raspberry Pi 3 model B. The latest version of the Raspberry Pi can not be powered via a computer's USB power supply and it is recommended that it should be powered using a much larger amperage power supply. This official power supply has been specifi..