This article provides a comprehensive overview of CPO optical modules, exploring their technology, benefits, challenges, and the pivotal role they play in future data centers and AI infrastructure. CPO optical modules put optical and electronic parts together. Kista, Sweden – April 15, 2026 – Sivers Semiconductors AB (STO:SIVE), a global leader in photonics and wireless technologies, today announced a collaboration with Jabil, a global engineering, supply chain, and manufacturing solutions provider. CPO, a technology that deeply co-packages the optical engine with the switch chip, offers a solution for. Arista Networks co-founder Andreas Bechtolsheim used his keynote at IEEE Hot Interconnects 2025 to highlight how Linear Pluggable Optics (LPO) and new rack designs can dramatically cut power consumption in AI-scale networks. LPO modules reduce per-pluggable power from ~30W with DSP-based optics to. While the industry-standard OSFP (Octal Small Form-Factor Pluggable) module has successfully enabled 400Gbps, 800Gbps, and 1. 6Tbps optical pluggable modules, it is limited to 32 modules per Rack Unit (RU), typically requiring 2 RUs to achieve 102. 8Tbps of switching. Enter Co-Packaged Optics (CPO), a transformative architecture where the optical engine moves inside the switch ASIC package.