The ASUS SupremeFX S1220A audio codec is based on the Realtek ALC1220 codec. Realtek is a well-known manufacturer of audio codecs, and the ALC1220 is one of their high-performance audio codecs commonly used in motherboards. ASUS has partnered with Realtek and integrated the ALC1220 codec into their SupremeFX S1220A audio solution, adding their own enhancements and optimizations to provide an enhanced audio experience specifically tailored for ASUS motherboards. While the underlying technology and core functionality are provided by Realtek, ASUS's SupremeFX branding signifies their additional features, software support, and customization options for the S1220A codec. Please download the drivers from ASUS's website for your motherboard model as the drivers below my not be suited.