Conwork 10-Pack 5.5mm x 2.1mm Male DC Power Plug Jack Solder Connector Adapter Great item for small electronics projects and CCTV applications. Connector Size - 5.5mm x 2.1mm - External Diameter x Internal Diameter Male DC Plug, solder termination with solder bucket and tag Perfect for making a cable to a desired length or replacing a broken connector. Package Contents: 10 x 5.5 x 2.1mm DC Plug Male. Lifetime Warranty.