Power Adapter Ultra Power CP040U 45W for ASUS X553, E502, X540, 4.0mm x 1.35mm 19V 2.37A add 147769 for compatibility with new Asus VivobookInput: AC100-240VOutput:19V 2.35AOutput Power:45WThe plug:4.0*1.35mmAccessories: 1.5M Eu AC cableSafety: (OP) over-power, (SC) short-circuit, (OC) over-current, (OV) over-voltage