Surface Pro 3 / Pro 4 Charger, BOLWEO Magnetic Replacement 12V/2.58A Charger Adapter Power Supply for Microsoft Surface Pro3/Pro4 Intel Core i5 i7 Tablet (US Plug) Replacement charger adapter for Microsoft Surface Pro 3 Tablet, Surface Pro 4 Intel Core i5 i7 Tablet [ NOTE: Not Fit for Surface Pro 4 Intel Core M3] Input: 100v-240v 50/60Hz ; Output: 12V 2580mAh ;US Type Version Plug ; Total 8.2Ft Cable Length ;With LED Indicator for Power Status BOLWEO products are UL, CE, FCC, RoHS certified for safety, manufactured with the highest quality materials,Provides overcharge Protection System/Short circuit/Overload protection/Over-heat protection All products has been 100% tested and validated to ensure it will work with Microsoft Surface Pro 3 / Surface Pro 4 What You Get:1 x Surface Pro 3/4 Adapter, 1x 1M AC Cable,BOLWEO Provides 30 Days Money Back Guarantee,12-month worry free warranty and don't worry about the problems once you order the product