Lavolta AC Adapter Laptop Charger for Lenovo B50 B70 E50 G40 G50 G70 Y40 Z50; G410s G500s G505s G510s; ThinkPad 11e Yoga E431 E440 E455 E531 E540 E550 E560 T440 T440p T440s T460p T540p T550 T560 W540