Hipower AC Power Adapter Charger For Samsung Ativ Book 9 NP940X5J-S01US, NP940X5J-S02US Laptop Notebook Computers Input: 100-240V 50/60Hz worldwide power compatible Output Volts: 19.00V Output Wattage: up to 40W maximum Output Current: up to 2.10A maximum Connector: Barrel, Center+