6T optical modules will be put into commercial use in 2025 and are expected to enter mass production in 2026. 6T have made significant progress. (2025-07-25 Shanghai) – Universal Scientific Industrial (Shanghai) Co. (USI), a global leader in electronic design and manufacturing services, announced its upcoming release of a next-generation 1. This milestone not only signifies a breakthrough. With 400G modules now the baseline, 800G adoption is surging—especially across AI and hyperscaler environments—while 1. 6T modules edge closer to reality.