50pcs Male & 50pcs Female DC Power Jack Adapter Connector Plug 2.1mm x 5.5mm Male Plug power connector. Connectss to Female Jack on CCTV Camera. 2.1mm x 5.5mm Femle Plug power connector. Connectss to male Jack on CCTV Power Adapter No electrical tap, No splicing, no crimping, but only a small screw driver. For CCTV power cable installation. 50pcs female and 50pcs male connectors