This is an original Microsoft 1624 charger, it has 13w of power and outputs at 5.2v 2.5a and included is the USB to Micro USB cable and is identical to the picture shown, this model has the Microsoft charging plug, with detachable head for sliding on/off, so you can fit European/us plugs onto this (UK plug only provided on this model) 

Genuine Microsoft 1624 ac adapter specification:
Power output: 5.2V 2.5a
Power input 100-240v
Connector type: Micro USB
Total power: 13W
Contents: Microsoft 1624 power adapter plug and Micro USB cable
Microsoft model: 1624

• Key points of the Genuine Microsoft 1624 charger
• Fits Microsoft Surface 3
• Does not fit Pro3 (this can be found below)
• Charging plug & cable supplied
• UK supplier with stock in the UK
• Original 13w 1624 charger