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 specifically designed for the Raspberry pi 3 Model B and comes with European and UK plug adapters. Box Contains ------------ 1 x Official 2.5Amp 5.1V Power Supply for Raspberry Pi 3 Model B with UK plug and EU plug adapter