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.&lt;br /&gt;&lt;br /&gt;- Provides a convenient and portable power source for use in a mobile environment and helps you save on equipment power consumption costs and travel.&lt;br /&gt;- Shared across all HP Business Notebooks for a convenient worry-free experience.&lt;br /&gt;- Energy-efficient power adapters designed to draw minimal power.&lt;br /&gt;- Integrated surge protector to guard against power fluctuations.&lt;br /&gt;- Recharges notebook battery when attached to electrical outlet and/or automobile power charger (depending on model).