Be productive throughout the day and keep an extra adapter on hand with the lightweight and versatile HP 45W Smart AC Adapter.• Enjoy compatibility with current and legacy devices. The 4.5 mm connector supports evolving smaller form factors, and the included 7.4 mm connector cable enables charging support for earlier platforms.• Get the peace of mind of a one-year limited warranty. Additional support is available (North America only) seven days a week, 24 hours a day by phone as well as through online support forums.