Lenovo ThinkCentre 65W AC Adapter (Slim Tip) - 65 W - 120 V AC, 230 V AC Input - Black. The ThinkCentre 65W AC Adaptor has new design with high power efficiency. It is your perfect replacement or spare power adaptor for your ThinkCentre devices. Good power efficiency and comparatively light weight 65 W maximum output power for optimal performance with maximum feasibility AC Adapter with 120 V AC input voltage for optimal performance with maximum usability