TOOGOO(R) 3.0mmx1.1mm Male Plug to 5.5mmx2.1mm Female Jack DC Power Connector Product Name : DC Power Adapter; Connector Type : 3.0x1.1mm Male Plug to 5.5x2.1mm Female Jack Material : Metal, Plastic;Overall Size : 3.5 x 1.2cm / 1.4" x 0.47" (L*D) Main Color : Black, Silver Tone Total Weight : 10g