Product Description HP 90W Smart AC Adapter Reliable power for your mobile world. 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 Degree) connector that reduces cable stress and an optional 4.5 mm to 7.4 mm conversion dongle. As a replacement or back-up adapter, be prepared with the right connection. Operate with confidence with optimal performance using smart-pin technology and reduce the risk of power surges, while drawing only minimal power as needed. Connection versatility with a specially designed dongle allowing for simple conversion from the new standard 4.5 mm connector to HP predecessor notebooks with 7.4 mm connectors. Tight access made convenient - the new right-angled (90 Degree) 4.5 mm connector allows for connecting in limited spaces and reduces cord bending providing better cable management and longevity. Compatibility/System Requirements HP Notebooks with 4.5 mm or 7.4 mm connectors Amazon.com Enjoy the flexibility and convenience of having an extra 90W Smart-pin AC Adapter for your HP or Compaq notebook--whether you're at home, in the office, or traveling. You can leave one at your desk and keep the other in your bag for quick plug-in. It also comes with an added bonus: no more climbing under the desk to plug and unplug. Key Features Save energy: the Smart-pin technology reduces power consumption when the maximum adapter rating is reached Recharge the battery, whether the PC is on or off, when plugged in an electrical outlet Protect your system from surges with the built-in surge protector Connect to non-Smart-pin HP and Compaq notebooks with the dongle Keep the cable neatly coiled with the Velcro strap Warranty: one-year limited Compatibility: HP Pavilion dm3, dv2000, dv4000, dv6000/dx6000, dv8000, dv9000 series notebooks; Compaq Presario V4000 series notebooks What's in the Box HP 90W Smart AC Adapter with Dongle includes adapter, power cord, dongle, and user guide See also a pop-up .