KFDtech 20V 4.5A 90W Laptop AC Adapter Power Supply For Lenovo IBM ThinkPad X1 Helix ThinkPad X1 Carbon ThinkPad S3 S5 Edge E531 N4L67GE Lenovo G410 G500 G500s G505 G505s G510S G700 B5400 G400 G510 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:20V 4.5A 90W Connector size:Square -- Please confirm the specifications and plug size before purchasing!If you can't make sure,pls feel free to contact us Comaptible with: Lenovo Thinkpad, Edge, Carbon, Yoga; Lenovo E540 E440 G500 G505 G510 G700 S210 S500 S510p T440 T540 U330 U430 U530 X240 Z410 Z510 Z710 Flex 2 10 14 15/Lenovo Thinkpad X240, E440, E540; Carbon X1; Helix; Thinkpad Edge E431, E531, S431, E540 E440, T431s, Lenovo S3 20AX, 20BA, 20BB; ThinkPad S3-S431 S5-S531 Serie; IdeaPad 20248, 20299 80BQ, 20B0, 20B3; Lenovo Ideapad S210, S215, U330, U330p, U330t, U430, U430p, U530, Z410, Z510, Z710; Thinkpad L440, L540, T440, T440p, T440s, T540p Products trademarked KFD are marketed and sold exclusively by KFD+ Serial number is 86629087