Microsoft Surface power adapter (Model 1536) with an output rating of 12V 3.64A and an additional 5V 1A USB charging port.
Specifications
Brand/Model: Microsoft Model 1536 AC Adapter
Input: 100-240V ~ 1.3A, 50/60Hz
Output: 12V 3.64A (main power) and 5V 1A (USB port)
Compatibility: Designed for earlier Microsoft Surface devices such as the Surface Pro 1 and Surface Pro 2.