Signal cables are specialized wires designed to transmit audio, video, or data signals between devices. They come in various types, including HDMI, USB, and coaxial, each serving different purposes and supporting different signal formats. The quality of these cables can affect the clarity and strength of the transmitted signals. These cables are essential in connecting devices like televisions, computers, and audio systems. Properly functioning signal cables ensure that information is transferred efficiently, minimizing interference and loss of quality. Choosing the right type of cable for your devices is crucial for optimal performance.