?????

Tony explained: 

 

Brand: Lenovo Lenovo 

 

Input: AC 100-240V 50-60Hz (worldwide) 

 

Output: DC 19V 3.42A 

 

Applicable models: Shenzhou Lenovo Fang Zhenglun fly Tsinghua Tongfang， Haier BenQ TCL gateway machine most 3.42A 

 

Tin Yat T600 Y160 Y300 Y330 Y510 Y520 Y800100 200 100A 80 F20 F30 F4 

 

Interface: outside diameter of 5.5mm， 2.5mm inner diameter 

 

Interface Type: Common Interface standard line type 

 

Note: If you do not know whether your machine can use this adapter， you can view your original adapter's output parameters (voltage， current) is consistent， if the original adapter is lost， you can see the bottom of the computer or the parameters of your machine instructions.