This is an original 1624 charger that outputs at 5.2V 2.5A, 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 5.2V 2.5A charger model 1624 ac adapter specification:
Power output: 5.2V 2.5A
Power input 100-240v
Connector type: Micros USB
Total power: 13W
Contents: Microsoft 1624 power adapter plug and Micro USB cable
Microsoft model: 1624

• Key points of the Genuine Microsoft 5.2V 2.5A charger
• Fits Microsoft Surface 3
• Does not fit Pro3 (this can be found below)
• Charging plug & cable supplied
• UK supplier with Uk stock
• USB 2.0 port also on charging unit
• Original Microsoft 13w charger