Provide optimal power and help offset power fluctuations to your HP notebook with a HP 90W Smart AC Adapter. Now available with a new right-angled (90°) connector that reduces cable stress and an optional 4.5mm to 7.4mm conversion dongle. As a replacement or back-up adapter, be prepared with the right connection. - Provides a convenient and portable power source for use in a mobile environment and helps you save on equipment, power consumption costs and travel. - Shared across all HP Business Notebooks for a convenient, worry-free experience. - Energy-efficient power adapters designed to draw minimal power. - Integrated surge protector to guard against power fluctuations. - Recharges notebook battery when attached to electrical outlet and/or automobile power charger (depending on model).