Here are some Detailed Descriptions:

Connector Type: Male - The connector has pins or prongs that are designed to be inserted into a corresponding female socket. In the context of DC power jacks, the male connector is typically found on the power supply or adapter side.

Size: 2.1 x 5.5mm - This indicates the dimensions of the connector. The outer diameter of the plug is 5.5mm, and the inner diameter is 2.1mm. This standardized sizing ensures compatibility with devices that use this type of connector.

Usage: DC power jacks with a 2.1 x 5.5mm male connector are commonly used for providing a power input to electronic devices. They are found in various applications, including laptops, routers, LED lighting systems, CCTV cameras, and other devices that require an external power source.

Compatibility: Due to its widespread use, devices with a 2.1 x 5.5mm DC power jack are often compatible with a variety of power adapters and chargers, making them versatile and easy to find replacements for.

Construction: The connector is typically made of durable materials to ensure a reliable and long-lasting connection. The internal components are designed to handle the electrical specifications of the device it powers.