Shares of Nvidia down almost 3% uh so far today. This after Chinese regulators have reportedly uh banned technology companies based in that country from buying Nvidia's new AI chips. Christina parts follows all of this very closely for us and has that is the subject of today's tech check.Christina, thanks David. Well, China's ban target specifically a chip known as B40 going beyond previous import restrictions on Nvidia's H20 chips that are made just for China. That's all you need to know.These chips are ma ...