... voltage: 15V-24V USB output voltage: 5VDC 120W travel ac adapter Detailed Product Description:input DC voltage 12V and output ... connect correct before use. with many protection functions use for the notebook computer, power supply by 12V car batteryAC ... +70B:6.3*3.0 for Toshiba,NEC 15V; C:5.5*2.1 for acer, Liteon,NEC 19V; D ... :5.5*2.5 for HP,compaq, Acer, gateway,IBM, Asus,Liteon,NEC, ...