DNA Finland, the country’s second-largest mobile and fixed broadband operator, has launched Harmonic’s SeaStar optical node to bring multi-gigabit connectivity into previously underserved brownfield MDUs. By leveraging existing in-building coax wiring, the operator can now economically serve lower-density buildings that were cost-prohibitive under traditional fiber rollouts.

The SeaStar node supports point-to-point fiber connections to up to 16 low-cost optical mini nodes per MDU, which then utilize the building’s coax network to deliver fiber-grade speeds. Integrated AI-powered network intelligence provides real-time analytics and proactive impairment resolution, reducing both capital expenditure and ongoing operational costs.

This deployment opens a new addressable market segment for DNA Finland by enabling scalable, cost-effective broadband expansion into small MDUs. The solution strengthens the operator’s competitive position, accelerates time to market for multi-gigabit services and unlocks revenue opportunities in previously inaccessible buildings.