A hangkártya is a computer component that enables audio playback and recording. It processes sound signals and converts them into digital data, allowing users to experience high-quality audio through speakers or headphones. Hangkártyák are essential for gaming, music production, and multimedia applications. These cards can be integrated into the motherboard or installed separately as an expansion card. Many modern hangkártyák support advanced features like surround sound, audio effects, and multiple input/output options, enhancing the overall audio experience for users.