This is an original Microsoft Surface RT charger 12v 2a, model 1513 and is identical to the picture shown, this model has the magnetic connector to charge your 12v 2a tablet
 
Genuine Microsoft Surface RT power supply charger specification:
Power output: 12v 2a
Power input 100-240v
Connector type: Magnetic 5 point connector
Total power: 24w
Contents: Microsoft 1513 charger & standard mains lead power cable.
Microsoft model: 1513
Supports models: 1512, 1513, 1514, 1516
P/n: X868222-001
 
Key points of the Genuine Microsoft 1513 power supply

• Fits Microsoft Surface RT and Surface RT2
• UK plug included
• UK supplier with Uk stock
• Original Surface RT charger

 
A standard UK plug is included with your Microsoft Surface RT power adapter, so you can charge your Surface tablet straight away. If you order from outside the UK we will send your countries correct power cord.