DC ConnectorProduct Details1.Easy to use - Connect solar equipment, lamps, surveillance cameras, laptops and other devices to provide power for these devices2.Application - Suitable for laptop, tablet, CCTV surveillance camera, MP3, MP4, led light, Router, Mini Fan, Cable Modem, Hub, photo player, SCM development, electronic dog, access control attendance Etc3.Specification - Product Name : DC Power Connector Adapter;4.0mm x 1.7mm Male Plug to 5.5mm x 2.1mm Female Jack Coupler Converter4.Advantage - conversion and connection of different types of connectors; quick connection and disconnection5.Feature - Great item for small electronics projects and CCTV applications.,Perfect for making a cable to a length or replacing a broken connector.