... 2.1mm to 5.5m 2. Good price and quality 3. OEM and ODM service 4.UL,Rohs certificate 5 .Good sell and ... aftersell servic .Dc 2.1mm to 5.5mm ,dc 5.5mm ,dc 2.1mm Features ... :1.dc cable male ,2.1mm*5.5mm 2. Use ... purchase department and high dfficiency produce department Dc 2.1mm to 5.5mm