Tariff Costs for Active Optical Modules 40G

40G active optical modules imported into the U.S. are generally subject to a 10% basic tariff, with exemptions from higher ad valorem tariffs on Chinese goods under Executive Order 14257.Current Tariff LandscapeActive optical modules, including 40G QSFP+ transceivers and Active Optical Cables (AOCs), fall under Harmonized Tariff Schedule (HTS) number 8517.62, specifically subclass 8517.62.0090, which covers pluggable optical components . While the Trump-era trade policies initially imposed high tariffs on Chinese imports, these modules are exempt from the 245% ad valorem tariff on Chinese goods and from tariffs on other countries after a 90-day grace period . The standard 10% U.S. import tariff still applies to these components .Cost ImplicationsThe imposition of tariffs historically increased the cost of Chinese-manufactured optical transceivers by approximately 25%, affecting large-scale purchasers such as hyperscale data centers and telecom operators . Even with exemptions, policy uncertainty continues to influence procurement strategies, often leading to cautious purchasing and potential short-term price increases .Product Scope40G active optical modules include QSFP+ modules (SR4, LR4, BIDI, CSR4, PIR4, LX4, IR4, PLR4, ER4), 40G converter modules, and AOCs/DACs with breakout cables . These modules support 40 Gigabit Ethernet and can operate over single-mode or multimode fiber, with link lengths ranging from 1 meter to 40 kilometers, depending on the module type and application . They are widely used in data centers, high-performance computing networks, enterprise core/distribution layers, and service provider networks .Strategic ConsiderationsSupply Chain Planning: Despite tariff exemptions, companies often face uncertainty in pricing and availability, which can slow procurement decisions .Capital Expenditure Impact: While tariffs may not drastically alter capex budgets, they can influence the volume of optical components purchased in the short term .Global Sourcing: Many manufacturers continue to source from China due to established infrastructure and cost advantages, but tariff policies encourage diversification of supply chains .SummaryFor 40G active optical modules imported into the U.S.:Basic tariff: 10%Exemptions: From 245% ad valorem tariffs on Chinese goods and from tariffs on other countries after 90 daysHTS classification: 8517.62.0090Impact: Slight cost increase and supply chain uncertainty, but exemptions mitigate extreme price spikes Companies should monitor policy updates and consider strategic sourcing to manage costs effectively while maintaining network deployment schedules .