Replacement Microsoft 12V 4A 48W SURFACE PRO 3 Pro 4 DOCKING STATION Tablet Ac AdapterGenuine Microsoft 12V 4A 48W SURFACE PRO 3 Pro 4 DOCKING STATION Tablet Ac AdapterInput:100-240V~1.3A,50/60HzOutput Voltage: 12VOutput Current:4APower: 48WWeight( Adapter only ) :194gDimension( L x W x H ):94.60 x 50.50 x 28.70mmPlug Size: 4.5×3.0mmOriginal / Genuine : Yes Compatible Part Numbers:1627 Fits the Following Models:Microsoft SURFACE PRO 3 DOCKING STATION, Microsoft SURFACE PRO 4 DOCKING STATION, Microsoft SURFACE PRO 4 1627Microsoft AC Adapter: