Nvidia will incur $5.5 billion in charges due to US government restrictions on exporting its H20 AI chips to China.The US Commerce Department is enforcing the restrictions to safeguard national and economic security.The H20 AI chip, designed for the Chinese market and used by major Chinese companies like Tencent and Alibaba, is focused on inference.Nvidia responded to the ban by adjusting the chip architecture, but the US government still considers it a potential risk for supercomputers.