Specification Binding : Electronics Brand : Kam Kin Label : Kam Kin Manufacturer : Kam Kin PackageDimensions_Weight : 0.03968320716 PackageDimensions : L:4.49999999541 X W:2.99999999694 X H:0.49999999949 PartNumber : Ins 17R-5721 ProductGroup : PC Accessory ProductTypeName : CONSUMER_ELECTRONICS Publisher : Kam Kin SmallImage_Height : 72 SmallImage_URL : http://ecx.images-amazon.com/images/I/51S0B3mmZML._SL75_.jpg SmallImage_Width : 75 Studio : Kam Kin Title : DC-IN Jack for Dell Inspiron 17R-5721 15R-5521 15R-3521 17-3721 DC30100MB00 DC30100M800 1K31Y 01K31Y, Power Jack Harness Port Connector Socket with Wire Cable Weight : 0 WeightUnit : pounds