# Microsoft Lobbies Against Potential Ban on Chinese Optical Networking Gear Tech giant warns FCC import restrictions could halt critical AI data center expansion projects. - **Source:** [Tom's Hardware](https://www.tomshardware.com) - **Published:** 2026-11-10 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/4eec6e5b-258c-4b26-badb-806da5e9e8d2 ## Regulatory Threat to Infrastructure Microsoft is actively lobbying the White House and the National Security Council to prevent an FCC-led ban on Chinese optical transceivers. The company currently operates 35 data centers across the United States with plans for 134 additional facilities. These components are essential for connecting high-performance AI chips within massive server racks. ## Function of Optical Transceivers Optical transceivers convert electrical signals into light pulses for high-speed fiber optic data transmission. They are preferred in modern data centers because they offer lower latency, reduced power consumption, and less heat generation than traditional copper connections. Without these modules, expensive AI hardware remains unutilized, effectively stalling critical infrastructure deployment projects nationwide. ## Market Dependency on China Chinese manufacturers currently dominate the global market, supplying approximately 66% of all optical transceivers. A sudden import ban would eliminate the majority of available supply, severely exacerbating existing shortages. Industry experts warn that such a move could halt data center rollouts, as domestic production capacity cannot currently meet the massive demand. ## National Security Versus Supply The FCC is considering these restrictions due to fears that Chinese hardware could be compromised by Beijing. Potential risks include data theft, malware installation, or remote disruption of American data centers. This follows the precedent set by the previous ban on Huawei equipment within the United States telecommunications network infrastructure. ## Limited Domestic Production Capacity Unlike the telecommunications sector, which had numerous established competitors, the high-end optical transceiver market has few U.S.-based alternatives. Only two companies, Coherent and Lumentum, currently produce the necessary hardware. These firms lack the industrial scale required to compensate for the massive shortfall that would result from a total Chinese import ban. ## Proposed Phased Implementation Strategy A compromise under consideration involves restricting only Chinese transceivers capable of 3.2 terabits per second. While this technology exists, large-scale production is not anticipated until 2028, with installations beginning in 2029. This timeline aims to provide American manufacturers sufficient time to expand their output before the stricter regulations take full effect. ## Industry Opposition to Restrictions The Information Technology Industry Council, representing Microsoft and other major tech firms, argues that the ban would cause significant economic damage. John Miller, the council’s general counsel, stated that the policy threatens to grind data center expansion to a halt. They emphasize the lack of viable, immediate alternatives for critical networking hardware. ## Future Outlook for Data Centers The tension between national security and technological scaling remains a central challenge for the U.S. government. As demand for AI-driven data centers surges, the reliance on global supply chains creates a complex policy dilemma. Stakeholders are now waiting to see if the FCC adopts the proposed phased approach or stricter measures. ## Sources covering this story - https://www.tomshardware.com/tech-industry/policy/microsoft-lobbies-against-potential-ban-on-chinese-optical-networking-gear-for-ai-data-centers-as-fcc-mulls-restricting-imports-industry-group-says-move-could-grind-data-center-rollout-to-a-halt — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._