What is a common use for a 1/8" mini connector?

The 1/8" mini connector, often referred to as a 3.5mm connector, is commonly used for connecting audio devices, particularly microphones and headphones. This connector has become a standard in consumer audio applications due to its compact size and ease of use. Many portable audio devices, such as smartphones, laptops, and tablets, use this type of connector for headphones, allowing users to listen to music or take calls. In the realm of video production, it is also frequently employed to connect external microphones to cameras and audio interfaces, facilitating high-quality sound recording.

Other options listed, such as connecting power supplies, transferring video signals, or storing data, typically involve different types of connectors. Power supplies usually use larger connectors designed to handle higher voltage and current levels, while video signals generally require specialized connectors like HDMI or SDI. Data storage often utilizes USB or similar connectors, which are not suited for audio transmission.