Chinese state media has raised security concerns regarding Nvidia's H20 graphics processing units (GPUs), suggesting potential risks such as backdoor access. These allegations come amid broader apprehensions in Beijing about the safety and trustworthiness of foreign technology products. The concerns have fueled speculation about a possible ban on Nvidia GPUs in China, particularly as domestic companies like Huawei prepare alternatives. Huawei is advancing its own AI ecosystem by open-sourcing its CANN toolkit to encourage development on its Ascend GPUs, aiming to reduce reliance on Nvidia's CUDA platform and promote technological self-sufficiency. Despite the criticism, some analysts note that Nvidia's H20 chips remain superior to domestic offerings in terms of performance and cost for AI inference tasks.