DC Power Male Plug Adapter Connector 5.5x2.1mm

This is the male counterpart to the standard 5.5x2.1mm barrel jack found on countless DC wall adapters and low-voltage equipment - where the jack is typically fixed to a device, this plug goes on the cable end, letting a custom-built power cable terminate in the exact connector shape needed to plug into that equipment. Building a replacement or extension power cable for a CCTV camera, router, or any barrel-jack-powered device starts with a plug like this one.

A black plastic housing keeps the connector simple and unobtrusive, and the standard 2.1mm internal / 5.5mm external diameter matches the by-far most common barrel connector size in consumer and hobbyist electronics, meaning it's compatible with the vast majority of existing barrel-jack equipment without needing to check for an unusual connector variant.

Common uses are building custom or replacement DC power cables for CCTV cameras, routers, and other barrel-jack-powered devices, repairing a damaged power cable's connector end, and general DIY power wiring projects needing a standard male barrel plug.