The ThinkPad 170 W AC Adapter is the perfect replacement or spare power supply for your ThinkPad notebook. Just plug it into an available outlet to deliver immediate power to your compatible ThinkPad laptop. ThinkPad AC adapters are compact, making them highly portable – perfect for busy professionals and travellers alike. They are energy efficient with an Energy Star V (ES 2.0) rating and are backed by a one-year official Lenovo warranty. They perform to the exact same specifications as the standard ThinkPad AC adapter that came with your ThinkPad laptop. This 170 W adapter is only compatible with ThinkPad laptops with rectangular "slim-tip" common power plugs. It is not compatible with pre-2013 ThinkPad laptops with the round, barrel-type power plug.
Question from maira: Asked on 18/01/2026 does it come with the : The adapter brick (the 170?W power unit)
and the mains power cord to plug into the wall. it says in one iamge but not mentioned anywhere else.
Hi, The Lenovo 170W AC Power Adapter (Slim Tip), model number 4X20E50578, comes with the 170W adapter brick and the mains power cord for plugging it into a wall outlet.
Thank you.