This is Official microUSB Power Supply Unit from Raspberry Pi Foundation !
The official and recommended universal micro USB power supply for Raspberry Pi. We’ve tested this supply in all kinds of situations, and it’s as solid as a rock; it’ll keep feeding your Pi the steady 2.5A it needs for proper performance.
There are also four interchangeable mains adaptors — you can use it in the UK, Europe, Australia and the United States.
- 1.5m wire length
- Interchangeable heads for different countries
- Short circuit, over current and over voltage protection
- 50,000 hours MTBF (Mean Time Between Failure)
- 5V output, 2.5A max output
- Universal AC power input, 90VAC-264VAC
- 1 year warranty