https://fortune.com/2023/11/01/nvidia-shares-fall-report-us-...
>The restrictions were supposed were supposed to only come into play on Nov. 17, 30-days after the US first announced it. But in a filing on Oct. 24, Nvidia said it was informed that the rules were effective immediately and that it would affect shipments of Nvidia’s A100, A800, H100, H800, and L40S products. The 800 series chips were designed specifically for the Chinese market to circumvent the earlier iterations of the export control rules.