Conwork 10-Pack 4.0mm x 1.7mm Male DC Power Socket Jack Solder Connector Adapter Great item for small electronics projects and CCTV applications. Connector Size - 4.0mm x 1.7mm - 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 4.0mm x 1.7mm DC Plug Male. Lifetime Warranty.