Sub-brand. After all, Onda is a sub-brand of South China Gold. I believe many enthusiasts know that South China Gold motherboards have solid workmanship, sufficient materials, high playability, and beautiful prices. They are the first choice for many enthusiasts. Shenzhen Huanan Sanxian Technology Co., Ltd. was founded in 2008. It is a professional motherboard R&D, production and sales company. It develops and sells a full range of Huanan Gold Medal (registered trademark HUANANZHI) motherboards. It has more than 20 patents, software and work copyrights, including utility model and appearance patents. Its production and sales have passed ISO9001 system certification, as well as domestic and foreign product certifications (including CCC, ROHS, CE, FCC, BSMI, etc.).