Alc892 For Macbook AirPurposeThis download provides the Realtek* High Definition Audio Driver for the 3.5mm audio jack on Intel® NUC Kit. This audio driver is required if you plan to connect a microphone or headset to the audio jack.General Description. The ALC892-CG/ALC892-DTS-CG is a high-performance multi-channel High Definition Audio Codec with Realtek proprietary lossless content protection..