NVIDIA has been called in by Chinese regulators over claims that its H20 AI chip poses security risks, putting billions in potential sales at stake.

Washington in July cleared Nvidia to resume sales of the H20 chips to China, reversing an effective April export ban. Beijing has since sought supporting documentation on potential risks, including vulnerabilities,

China's cyberspace regulators have summoned Nvidia over security concerns about its H20 chips. They claim the chips can be tracked and turned off remotely.