Adaptor Adapter Charger Laptop Notebook Lenovo ThinkPad X1 Carbon Helix L440 S431 T431s T440 T450 T550 T560 W550s X240 X250 Chromebook N20 N20p X150E 260460 IdeaPad 300 500 Z410 Z510 S500 U330 U430 U530 V110 V310 Flex 10 14 15 - LENOVO USB LOGO 20V 4.5A