KFD AC Adapter for Lenovo ThinkPad X1 Carbon (2nd 3rd 4th Gen),X1 Yoga 1st Gen,T Series T470 T470S T460 T450 T440 T570;E540 E550 E560 E570 ThinkPad Helix;Yoga 2 Pro S1 S3 S5 11 12 13 14 15 260 500 KFD products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications Warranty: 30 Days Free Exchange /12 Months Warranty Input: 100-240V 50-60Hz Output:20V 3.25A 65W Connector size:Square-- for Lenovo Yoga 13,IdeaPad Yoga 2 Pro,Flex 14,ADLX65NDC2A ADLX65NLC3A,ThinkPad X1 Carbon 3448, Yoga 11 11s,ThinkPad X1 Helix S3 S5,ThinkPad X1 Carbon 3448 compatible model:Lenovo IdeaPad Yoga 13 11 11s Thinkpad X1 Helix 11.6 M490s Edge E431 E531 S431 20AX0001US 45N0254 45N0256 45N0262 S3-S431 36200251 for ThinkPad X1 Carbon (2nd 3rd 4th Gen); X1 Yoga 1st Gen; T Series T431s T440 T440p T440s T450 T450s T460 T460s T470 T470s T550 T560 T570 TP25; X Series X240 X240S X250 X260 X270; E Series E431 E440 E450 E455 E460 E465 E470 E475 E531 E540 E550 E550c E555 E560 E565 E570 E575; L Series L440 L450 L460 L470 L540 L560 L570; B Series B40-30 B50-30 B50-35 B50-70 B5400; P/N PA-1650-72 PA-1650-37LC ADP-65FD B ADLX65NLC3A ADLX65NDC3A and others (see list below)