... 3. professional after-sales maintaining service.Product NameSony 19.5V 7.7AInput Voltage100V~240V ACWorking Conditions Temperature-10^C ... Vp-p(max)Output Voltage19.5VOutput Tips6.0*4.4mmOutput Current7.7AElectrical SpecificationShort-circuits, Over-voltage, ... .3) Full protection for the notebook computers.4) If you are running your computer on ... welcomed. Laptop Adapter For Sony 19.5V 7.7A , 6.0*4.4mm