The Connector Barrel Male Plug 2.1/5.5 is a male barrel-type connector, ideal for connecting devices that require power supply through the well-known barrel connector type. It has an outer diameter of 5.5mm and an inner diameter of 2.1mm, making it compatible with many devices such as power supplies, LED strips, cameras, and other electronic applications. The male type allows connection with female sockets, providing reliable and safe energy transfer.