It works fine, but is missing some circuitry to satisfy the laptop charging system, Genuine 65W Lenovo ThinkPad Edge E430 3254-ADU AC Adapter Charger, Sherman Oaks California, 91403
Genuine 65W Lenovo ThinkPad Edge E430 3254-ADU AC Adapter Charger
Genuine 170W Lenovo ThinkPad w540 20BH001Pus AC Adapter Charger Power Cord
The charger works just fine, but the charging system complains when you plug it in. In fact the charging system says it will charge he laptop, but it lacks some management circuitry. A small annoyance.