The image shows a standard DC barrel connector, specifically a 5.5mm x 2.1mm male plug, which is the most common size used for 12V DC power adapters. These are frequently used for CCTV cameras, LED light strips, and routers. Technical Specifications Outer Diameter (OD): 5.5mm Inner Diameter (ID): 2.1mm Exposed Plug Length: 10mm (Standard lengths range from 8mm to 14mm) Voltage Compatibility: Typically rated for 1V to 24V DC (Maximum 36V in some models) Current Rating: Varies by construction, typically supporting 1A to 5A Polarity: Most commonly center positive (+), though this can vary by specific power supply design Key Features Internal Construction: Often features a pure copper core for better electrical conductivity and reduced resistivity. Cylindrical Form Factor: Provides a secure, simple plug-and-play connection that reduces arcing and heat generation compared to lower-quality connectors. Integrated Strain Relief: The ribbed section at the back of the plug protects the internal wire connections from damage caused by bending or pulling. Universal Utility: This specific 5.5mm x