The combination scooterbackpack is an article carrying device with the capacity to be converted into a wheeled land vehicle, and therefore has two modes of usage. The second control circuit controls the first control circuit to output the second RGB signal to the LCD unit and controls the power supply circuit to supply electric power to the LCD unit, when the second control circuit detects that the second RGB signal is inputted to the first control circuit. The connector is mounted within the hard disk drive tray, and the hard disk drive tray is entirely enclosed within the chassis.