AUX audio video connectors are available in different sizes, structures, and mounting styles. Selecting the correct type depends on the device design, signal requirements, installation method, and available space.

The 3.5 mm AUX connector is one of the most widely used types. It is commonly found in car audio systems, speakers, headphones, computers, multimedia players, and portable electronic devices. Its compact size and broad compatibility make it suitable for many consumer and commercial products.

The smaller 2.5 mm connector is used in products where internal space is limited. It may be found in compact communication devices, handheld equipment, and specialized electronics. Although less common than the 3.5 mm version, it remains useful in selected applications.

AUX connectors can also be classified by their installation method. PCB-mounted connectors are soldered directly onto printed circuit boards and are widely used in electronic assemblies. Panel-mounted connectors are fixed to the outer panel of equipment, making them suitable for control systems, audio equipment, and industrial devices.

Cable-mounted connectors are attached to wires or cable assemblies. They are often used in adapters, extension cables, conversion modules, and customized wiring products.

Connector configurations may also differ in the number of conductive contacts. Some designs carry stereo audio only, while others may support microphones, control signals, or combined audio and video transmission.

Understanding these differences helps manufacturers select a connector that matches the electrical, mechanical, and structural requirements of the final product.