Toslink is a standardized optical fiber connection used to transmit digital audio signals. It utilizes light to carry sound, which helps to eliminate interference and maintain high audio quality. This type of connection is commonly found in devices like CD players, DVD players, and home theater systems. The Toslink connector is typically a square-shaped plug with a small, rounded tip. It connects to a corresponding optical port on audio equipment, allowing for a secure and reliable link. Many modern devices support Toslink, making it a popular choice for connecting soundbars and AV receivers in home entertainment setups.