This Pi Foundation approved power supply unit (PSU) for the Pi 3. The power supply is an integrated cable and microUSB plug. There are also four interchangeable mains adaptors — you can use the PSU in the UK, Europe, Australia and the United States.

Manufacturer product number: T5989DV.  

Technical Specification:
• 2.5 A 5.1 V power supply.
• 1.5 m cable.
• Short circuit, over-current and over-voltage protection.
• Low standby current consumption.
• Class II double insulated.
• ERP level 6 efficiency rating.