Replacement Microsoft 12V 2.58A 36W Surface Pro 3 Pro 4 1631 1625 Tablet Adapter with USBGenuine Microsoft 12V 2.58A 36W Surface Pro 3 Pro 4 1631 1625 Tablet Adapter with USBInput:100~240V 1A 50-60Hz Output Voltage: 12V Output Current:2.58A Power: 31W Original / Genuine : YesCompatible Part Numbers:surface pro 3 1625, surface pro 3 1631, PRO3 1625, PRO4 1631 Fits the Following Models:PRO 3, PRO 3 1625, PRO 4, PRO 4 1631, SURFACE PRO 3, SURFACE PRO 4 1631, SURFACE PRO 4 I5, SURFACE PRO 4 I7,Microsoft AC Adapter: