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LENOVO ThinkPad 90W AC Adapter for X1 Carbon -
90W AC ADAPTER SLIM TIP FOR SELCTED THINKPADS AND TABLETS
90W AC ADAPTER SLIM TIP FOR - EDGE E540 EDGE E440 EDGE E531 EDGE E431 L540 L440 S540 S440 S531 T540P DUAL CORE T440 T440P T440S T431S X240 X240S X1 CARBON YOGA 20C0 AND 20CD AND HELIX 3697 3698 3700 3701 3702 - ONLY WORKS IN THESE MODELS - LENOVO MODEL S ARE SUFFIX SPECIFIC