... the DC conversion head : PLUGSIZEADAPTABLE16.3*3.0 SONY,FUJITSU,SAMSUNG 26.0*1.0 TOSHIBA,NEC 35.5*2.5 LITE,FUJITSU ... *1.7 ASUS,HP,NEC,DELTA,CPQ 74.0*1.7 ASUS,BENQ,ACER,SONY 83.5*1.35 ... advanced production equipment, strict production process, high-quality management team and strong productivity. 4.Best and professional service ,customers requirements are welcome ...