This portable, ThinkPad 65w slim adapter ensures you never need to be without access to power. The ThinkPad 65w AC adapter is compatible with post 2013 Lenovo notebooks with rectangular slim tip common power plug. The compact design performs to the same specifications as the standard AC adapters shipped with the notebooks. Each one is energy efficient with Energy Star V (ES 2.0) technology and is protected by a 1-year limited warranty with Lenovo.