Nvidia faces a potential $5.5 billion revenue setback as the Trump administration implements stricter controls on AI chip exports to China. The new regulations specifically target advanced semiconductor sales, affecting Nvidia's H100 and A100 chip series. Industry analysts predict this could significantly impact Nvidia's market dominance in AI technology, with the company's shares dropping 2.3% following the announcement. The restrictions aim to prevent China from accessing cutting-edge AI capabilities while protecting U.S. national security interests.