Lenovo 120W AC Adapter offers convenient access to power wherever you need it. Keep one in your carrying case, one at home, and another in the office for maximum uptime.1. Performs to the same specifications as the standard 120W AC adapter that ships with the Ideapad notebooks. 2. Is not compatible with ThinkPad notebooks or other Ideapad notebooks 3. Backed by a Warranty and Service and Support from Lenovo.