Get power when and where you need it with a spare ThinkPad AC adapter (slim tip). Keep one in the office, one at home, and another in your carrying case for convenient access to power wherever a wall outlet is available. Great as a spare or replacement for your laptop. Perfect companion for office, travel and home usage that helps customers save on power consumption costs, space and equipment. Provides peace of mind with 1 year warranty.- System building block accessory - Identical to the adapter bundled in 45W ThinkPad systems - 26% smaller than the current ThinkPad 65W AC Adapter - Energy efficient with Energy Star V (ES 2.0) - Compatible with ThinkPad Helix, T4301s, and 2013 Lenovo notebooks with slim common power plug - Not compatible with legacy notebook systems with the round, barrel-type power plug.