The Realtek ALC897 is a high-definition audio codec widely used in desktop motherboards for gaming, home entertainment, and general multimedia applications. As an audio codec, it handles the encoding and decoding of digital audio for playback and recording. The ALC897 supports up to 7.1-channel HD audio with sampling rates of up to 192 kHz, delivering clear and detailed sound output. It includes features such as multi-streaming audio and support for Dolby Digital Plus and DTS surround technologies, enhancing immersion. With digital output options like S/PDIF and HDMI, the ALC897 provides flexible, high-quality audio connectivity for modern systems.