uxcell 10 Pcs DC Power 4.0mmx1.7mm Male to 5.5x2.1mm Female Jack Adapter Connector Product Name : DC Power Connector;Connector Type : 5.5 x 2.1mm Female to 4.0 x 1.7mm Male Main Material : Plastic, Metal;Color : Black,Silver Tone,Yellow Size : 39 x 12mm / 1.5" x 0.47"(L*W) Weight : 44g Package Content : 10 x DC Power Connector