HUBER+SUHNER has worked closely with the Microsoft Azure team in Romsey, UK to develop and manufacture innovative Hollow Core Fibre (HCF) cable and connector solutions. The company is progressing its next-generation, higher-density HCF cable designs to support future Azure network requirements.

Apr 21, 2026

HUBER+SUHNER has worked closely with the Microsoft Azure team in Romsey, UK to develop and manufacture innovative Hollow Core Fibre (HCF) cable and connector solutions. These solutions are already deployed in the Azure network, with higher-capacity variants under development to support Microsoft’s future scaling of its HCF‑enhanced cloud infrastructure.

HUBER+SUHNER and Microsoft have developed and qualified a series of ruggedized outside plant (OSP) and inside plant (ISP) cable solutions, certified for field deployments. The company is progressing its next-generation, higher-density HCF cable designs to support future Azure network requirements.

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Additionally, HUBER+SUHNER has created an innovative mode‑converting HCF connector specifically engineered for the demands of hyperscale and metro‑optical environments. These patented HCF connectors are in series production at HUBER+SUHNER’s Cube Optics facility in Mainz, Germany, and the company is investing to further scale manufacturing capacity to meet accelerating demand. With qualified designs in both HCF cables and connectors, HUBER+SUHNER is now extending its HCF product portfolio to enable fully integrated, end‑to‑end connectivity solutions.

“HUBER+SUHNER is proud to support Microsoft as HCF connectivity solutions move to deployment at scale. Building on our foundations of innovation and quality, we can expect further advances in our HCF connectivity portfolio as the pace of adoption accelerates,” said Mr. Jürgen Walter, COO Communication Segment at HUBER+SUHNER. “Together, we look forward to shaping the future of cloud connectivity and unlocking the full potential of HCF.”

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“We value our long-standing collaboration with HUBER+SUHNER, which has helped us transition HCF technology from advanced research into operational deployment in the Microsoft Azure network,” said Mr. Colin Wallace, GM Cloud Network Engineering, Microsoft Azure.