"Growth was strong across all regions except for China, where our data center revenue declined significantly following the US government export control regulations imposed in October," Kress said.
Nvidia noted that China represented a "single-digit percentage" of data center revenue for the fourth quarter of the 2024 fiscal year and that similar numbers are expected for the current quarter.
https://www.investopedia.com/4-key-takeaways-from-nvidia-q4-fy2024-earnings-call-8598375