1.90W with USB port (5V*2Amp)     usb port  can charge for MP3,mp4 ,mobile etc . HOME use                                                                                                Input voltage :AC 100-240V 50/60HZ.
2.Output voltage and current: 12V/15V/16V/18/19V/20V DC4.5A  24V 3.75A     3.7 voltage output
4:8pcs dc connectors
5.protection :short circuit protection .overload protection
6.Different voltage and different tips(8pcs  2pin style )  suitable for most brand laptop .such as Acer .IBM . Toshiba. Dell .Sony.Asua .Compaq.Liteon etc.