Following the Super Micro controversy, US Senators

MEMBER EXCLUSIVE
Nvidia CEO Jensen Huang
(Image credit: Getty Images / Bloomberg)

A bipartisan group of U.S. Senators is urging the government to move quickly to block the trade and delivery of Nvidia GPUs and server systems to China and southeast Asian nations, after the latest disclosures concerning the Super Micro illicit trade controversy.

U.S. Senators Jim Banks (R-Ind.) And Elizabeth Warren (D-Mass.) Have penned a letter to U.S. Commerce Secretary Howard Lutnick disputing Nvidia's claims that it was unaware of GPUs and servers being diverted to China— part of an opereration to dodge sanctions on the lucrative technology.

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To the letter

We advocate for every essential and suitable measure, such as the prompt halting, temporary cessation, or further review of every current shipping permit involving sophisticated Nvidia AI processors and server frameworks headed toward... China as well as for intermediaries in south-east Asia, including Malaysia, Thailand, Vietnam and Singapore," the letter reads, as reported by the Financial Times.

This letter is particularly notable for its bipartisanship. Senator Warren is a one-time presidential hopeful and one of the leading progressives within the Democratic Party. She's also the leading Democrat on the Senate Banking Committee. In contrast, her fellow letter signer, Jim Banks, is a staunch Republican, having voted against stimulus checks during the Coronavirus pandemic; he has previously called climate change a left-wing hoax.

Despite their differences, the joint letter drives right at the heart of recent efforts by Nvidia and its CEO to restart GPU shipments to China. This occurs after the bulk of 2025 was passed with them virtually prohibited as America and China battled over international commerce and utilized access to GPUs and vital minerals as weapons to strike at each other.

After months of wrangling, the U.S. Finally approved export licenses for Nvidia's previous-generation H200 Grace Hopper GPU configurations during December, with only the Chinese authorities then needed to approve the imports. This had begun to occur, as Huang noted slightly more than a week ago that the first orders from Chinese companies had started to appear.

Subsequently, the Super Micro report surfaced, and now the entire operation is jeopardized by this correspondence from U.S. Senators. For its part, Nvidia claims to have been unaware of the scheme and that it follows all regulations to the letter.

"Strict compliance is a top priority for Nvidia," the organization noted in a communication to 3DTested. "We continue to work closely with our customers and the government on compliance programs as export regulations have expanded [...] Nvidia does not provide any service or support for such systems, and the enforcement mechanisms are rigorous and effective.”

While that might appear to insulate Nvidia from any worries, this could just be the start of its difficulties. The letter doesn't just call for a halt to exports, but hints that CEO Jensen Huang may have misled lawmakers when previously discussing GPU diversions.

Nvidia under fire

Nvidia Hopper H100 GPU and DGX systems

The illicitly traded components mentioned likely represent the Nvidia Hopper H100, and A100 AI accelerators. (Image credit: Nvidia)

Within the document, Banks and Warren emphasize that during Huang's 2025 lobbying activities to permit the distribution of its advanced GPUs to China, he dismissed the notion that GPUs were being redirected there from different regions to Bypass commercial constraints.

Huang reportedly told lawmakers that because Nvidia customers were aware that diversions of chips were not legally permitted, they “monitor themselves very carefully."

The Senators highlighted these and other statements by Nvidia executives as “materially false or misleading." If such statements affected licensing controls, then those controls should be reconsidered, they said.

American export regulations are intended to safeguard American national security. These measures function only when the firms bound by them comply with the statutes and diligently, vigorously oversee their distribution networks. We are concerned that the recent Supermicro indictment raises serious questions about Jensen Huang’s public assurances.”

Huang's claims may be under scrutiny, as there is public evidence of Nvidia's abilities to track where its graphics processors end up. Although it denied claims from China that it had kill-switches, or active tracking hardware on the GPUs themselves, Nvidia has admitted that telemetric information could enable it to approximate a GPU's position.

Since there is a trackable latency between an Nvidia GPU sending a message to Nvidia servers and then receiving the response, Nvidia can make a guess of where in the world it might be.

If that truly is the case, how could it not know GPUs planned for one territory or country were being diverted to another?

Contrast import and export rules.

The letter also raises serious questions about the heavy contrast in U.S. Export and import legislation. The Commerce Department said in response to the letter that selling Nvidia's H200 GPUs to China, “under controlled conditions, will strengthen the American technology ecosystem." And yet at the same time, the Leadership lately enacted severe limitations on Chinese imports of drones and foreign-made routers.

Earlier this Monday, the Federal Communications Commission stated it would stop certifying Wi-Fi routers made outside the United States. It didn't single out China, but the measure will prohibit the sale of routers in the United States if they are manufactured in China. Similarly, the FCC has blocked the sale of next-generation Chinese drones in the United States. Although it has since permitted earlier versions from producers such as DJI to be marketed, the overall ban is still in place ahead of planned trade negotiations between the U.S. And China in early April.

Despite this heavier hand on other aspects of trade with China, the route for Nvidia GPU sales currently remains open, though this new letter may ultimately change that.

Nvidia also faces another potential roadblock in the form of the Chip Security Act. Set to be voted on by the House foreign affairs committee as soon as this week, it would require location tracking on all advanced AI chips to make diversion far more difficult.

Consider how cagey China was when it merely thought Nvidia GPUs had tracking hardware on board. Should Nvidia be required to include such gear in its products, the firm's future deals in China might hit a much more substantial hurdle.

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Jon Martindale
Freelance Writer