Optical module PCB technology is evolving rapidly to meet the extreme demands of AI data centers and high‑speed networks. 6T, next‑generation optical modules require higher density, advanced materials, innovative thermal management, and new architectures such as CPO. 8% during the. When Amazon's $100 billion 2025 capex collides with OpenAI's “Stargate,” an AI-driven hardware revolution is reshaping the electronics supply chain—where optical modules and PCBs serve as the core engines. Key Stat: Top 4 CSPs' 2025 total capex exceeds $300B, growing >35% YoY. These boards are designed to support. Optical module demand is being pulled in two directions at once, faster bandwidth for dense networks and tighter constraints on power, security, and lead times.