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Microsoft to Commercialize MicroLED Datacenter Cables by Late 2027 and Expand Hollow Core Fiber Deployment

DATA AND AI INFRASTRUCTURE

Microsoft is set to commercialize its MicroLED-based optical cable system, known as MOSAIC, by late 2027, developed with MediaTek and other partners. This technology replaces lasers with inexpensive MicroLEDs, achieving roughly 50% lower energy consumption compared to conventional optical cables and supporting thousands of parallel data channels.

The system has been miniaturized into a standard transceiver compatible with existing datacenter equipment. Microsoft is also expanding its Hollow Core Fiber (HCF) technology, which offers up to 47% faster data transmission and approximately 33% lower latency than traditional fibers.

HCF is already in use in some Azure regions, supporting longer-distance connectivity between data centers. The combination of these technologies aims to improve energy efficiency and scalability in response to increasing AI workloads.

Microsoft to Commercialize MicroLED Datacenter Cables by Late 2027 and Expand Hollow Core Fiber Deployment
Mar 18, 2026, 11:41 PM

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