PowerUp Car Power Supply Charger DC Adapter Fits HP DM1-3000, DM1-4010, DM1-4010CA, DM1-4010US, DM1-

• DC Plug: Barrel With Center Pin
• Amps: up to 3.42A maximum
• Watts: up to 65W maximum
• Volts: 19.00V
• Input Rating: 11-15V DC

The power up car power source was exactly as described and worked up to and above all expectations. I recommend it for anyone who needs to power up their laptop in a car.