ThinkPad/锟斤拷锟斤拷原装X230s/X240/X240s/X250/X260/X270锟斤拷锟节达拷锟斤拷始潜锟斤拷锟斤拷缘锟皆达拷锟斤拷锟斤拷锟?5W锟斤拷锟斤拷锟?0V 2.25A锟斤拷源锟斤拷