Compatibility: Microsoft Surface Pro 3 and Surface Pro 4 i5 i7 Tablet.
Input: AC100-240V (worldwide use) Output: 12V 2.58A 36W.
Additional USB Port: 5V 1A USB 2.0. The USB port allows you to charge another device such as your phone at the same time.
Magnetic snap-in power adapter charges Surface
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Attention
*Don't expose to liquids
*Don't disassemble
*Avoid dropping
*Avoid extreme temperatures
It is normal that has certain temperature increasing during use.