Runpower 48W 12V 3.6A Replacement Power Adapter Charger for Microsoft Surface Pro 1 Pro 2 10.1 inch Windows 8 Tablet PC Power Supply Jack with 1.7 FT Power Cord Replacement power adapter for Microsoft Surface Pro 1, Pro 2,Power Supply 1536, 1512,With 1.7 FT Power cord Automatic thermal, overload cut-off, and short circuit protection Input: AC100-240V, 50/60Hz (worldwide use); Output: 12V 3.6A 48W Additional USB Port: 5V 1A USB 2.0--Allows you to charge 2 devices at the same time 12 Months warranty.30 days money return guarantee.24 x 7 email support.