[UL LISTED]KFD AC Adapter for Samsung XE500C21/7 Slate/Series 9 Ultrabook Ativ Book 5 7 9 900x 900x3a 900x3b 900x4b AD-4019W AD-4019P AA-PA2N40L BA44-00278A ASUS UX21 UX31 UX31E UX21E 19V 2.37A 40W KFD products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications Warranty: 30 Days Free Exchange /36 Months Warranty; This adapters was made with the highest quality materials.V-0 grade flame retardant,OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)100% compatibility with the original,more safety than other adapter Input: 100-240V 50-60Hz Output:19V 2.1A -2.37A 40W-45W Connector size:3.0*1.0mm Please confirm the specifications and plug size before purchasing!If you can't make sure,pls feel free to contact us compatible model:For Samsung Ultrabook 530U3B 530U3C 535U3C NP530U3B NP530U3C NP535U3C 900X3A NP900X3B 900X1B XE700T1A, AA-PA2N40L, AA-PA2N40S, AA-PA3NS40/US, AD-4019P, AD-4019W, BA44-00278A, BA44-00279A, PA-1400-14 for Asus Transformer T200 T200TA T200TA-C1-BL; Transformer Book Chi T300 T300CHI-F1-DB;Acer Chromebook 11 13 14 15 CB3-111 CB3-131 Series; Asus Transformer Book Chi T300 T300CHI T300FA, Asus T200 T200TA, Samsung ATIV Book 9 NP900X3L NP900X5L, Lite Plus: Np900x3a NP900X3B Np900x3c NP530U3C NP530U3B XE700T1A