Denaq 19-Volt 4.74 Amp 5.5 mm-2.5 mm AC Adapter for HP/Compaq Business Notebook Series Laptops, Blacks Whether you're at home or on-the-go, this new AC power adapter and charger will ensure that you have the power you need, when you need it. Smart technology communicates accurate information to the computer. Meets or Exceeds Original Manufacturer specifications. Safety fuses guard against power surges. Color: Blacks.