AC Doctor INC 19V 2.1A 3.01.1mm 40W AC Adapter Charger Power for Samsung Series 5 9 XE500C21 NP900X3A New 19V 2.1A ac adapter charger for SAMSUNG NP900X1A NP900X3A XE500C21 AA-PA2N40L AA-PA2N40S AA-PA3NS40/US. Connector plug inter and outer diameter size 3.0*1.1mm. Free 2-prong US standard power cord cable included. Input: AC 100-240V, 50-60Hz. Output : 19V 2.1A. Plug size: 3.0*1.1mm. NOTE: If the output Voltage Ampere DC jack size and connector Dia. is the same as your ac adapter it can fit your computer. Please double ensure. If not it will not compatible.