Siemon has opened a new production line in Tijuana, Mexico, to manufacture PAM4 high-speed cable assemblies rated up to 800G. The move expands Siemon’s North American manufacturing capacity for data center and OEM connectivity programs that are increasingly tied to short build windows and fast link-speed transitions.

The Tijuana line is focused on PAM4 high-speed cable assemblies, and Siemon says the broader portfolio spans both NRZ and PAM4 designs across DAC, ACC, and AEC form factors. Across those options, Siemon lists supported data rates from 25G up to 800G and six connector choices: OSFP-FT, OSFP-RHS, QSFP-DD, QSFP, and SFP.

For operators, cable assembly sourcing isn’t just a BOM detail. At scale, lead times and delivery predictability can affect how quickly racks get turned up, especially when high-speed interconnect plans change mid-build. A manufacturing footprint that’s closer to North American deployments can also simplify logistics, but the practical value will come down to whether the new line actually improves schedule reliability under real demand.

Siemon also ties the expansion to supply-chain risk reduction and improved scalability, lead times, and reliability. The company says the Tijuana facility delivers TAA-compliant products and is intended to reduce costs tied to international shipping constraints.

“As data centers push the limits of performance, density, and deployment speed, our customers need trusted partners who can deliver. Expanding our high‑speed cable assembly production in Mexico strengthens our ability to meet those needs while maintaining the highest levels of quality, reliability and responsiveness,” said John Siemon, Chief Technology Officer and Chief Operating Officer at Siemon.

More details on the product line are available at Siemon High-Speed Cable Assemblies.

Source: Siemon