40W Lavolta Laptop Charger for Samsung Series 9 & ATIV Book 9 Plus Lite NP900X NP900X3A NP900X3C NP915S3G NP900X3F NP900X4C NP940X3G NP940X5J NP900X3L Ultrabook AC Adapter 19V 2.1A AA-PA3NS40 AD-4019P