Ultimate versatility - standard AC power supply, DC power cigarette lighter cable, and notebook power cable. Home, office, car, or plane, portable power is easily accessible. Pack less and power more with the convenience of a single detachable power cable and 3 interchangeable tips: 4.5mm and 7.4mm and Non-Smart (long & thin) connectors. Power the computer while also powering compatible USB devices such as smart phones and MP3 players at the same time by using the integrated USB port. The adapter will continue to provide optimal charging, while plugged into an electrical outlet, whether the computer is on or off. HP 90W Slim Combo with USB AC Adapter Size: 5.9 x 2.76 x 0.98 in.