Compatible With: Lenovo Thinkpad X1 Carbon T440 E431;With Lenovo G410 G500 G500s G505 G505s G510S G700 B5400 ;With Lenovo ThinkPad X240 E440 E540 ;With ThinkPad Edge E431 E531 S431 T431s ;With Lenovo Idea pad S210 S500 S510p U430 U430p U530 Touch ;With Lenovo Idea pad Yoga S1 11 11s 13 2 Pro ;Flex 14 15 15DHow to Check Your Device Required Voltage and Power? Usually, your device required voltage will be printed beside the power port or beside the battery Slot. Your device required Power watt is the value of required voltage multiplies required amps. NOTE: In order to get a correct adapter please kindly double check if your original adapter's output and connector size are the same as ours firstly.Item is Only Compatible with all Lenovo laptops with the rectangular “slim-tip” common power plug Not Round Tip Or Type C. See more

5.Service First: If you are unsure if your model matches, please feel free to contact us at any time. 4.Safety: with overload, over-voltage, and short circuit Protection. 3.Item Includes: AC Adapter and Power Cord,Power Cable Type: US standard. 2.Compatible With: Lenovo Thinkpad X1 Carbon T440 E431;With Lenovo G410 G500 G500s G505 G505s G510S G700 B5400 ;With Lenovo ThinkPad X240 E440 E540 ;With ThinkPad Edge E431 E531 S431 T431s ;With Lenovo Idea pad S210 S500 S510p U430 U430p U530 Touch ;With Lenovo Idea pad Yoga S1 11 11s 13 2 Pro ;Flex 14 15 15D. 1.Output Max: 20V 4.5A 90W/ Input Volt Range: 100-240V, Connector: Yellow USB tip(Square Tip).