A reversal of export controls on H20 chips presents a national-security risk, Justin Sherman writes in a guest commentary.

BEIJING/SHANGHAI/NEW YORK (Reuters) -Nvidia placed orders for 300,000 H20 chipsets with contract manufacturer TSMC last week, two sources said, with one of them adding that strong Chinese demand had led the U.

Demand in China has begun surging for a business that, in theory, shouldn't exist: the repair of advanced Nvidia artificial intelligence chipsets that the U.S. has banned the export of to its trade and tech rival.