Prysmian, Ufinet Deploy Ultra-High-Density Fiber Network Connecting São Paulo Hyperscale Data Centers

Prysmian and Ufinet Brasil deployed a 30-kilometer underground fiber network interconnecting hyperscale data centers in Alphaville, São Paulo state, using Prysmian’s SiroccoHD cable technology that achieves 432 optical fibers in a single 12x10mm microduct. The solution reaches 8.6 fibers per square millimeter density and enables up to 1,296 fibers through subducting three microducts into existing 40mm legacy ducts, tripling the capacity of conventional 144-fiber microcables currently standard in Brazil. The deployment addresses infrastructure constraints in congested urban areas where expanding transmission capacity without large-scale civil works presents operational challenges for network operators.

The cable employs Prysmian’s BendBright-XSTM 200µm single-mode fiber with reduced sensitivity to bends and compatibility with legacy infrastructure. Prysmian states the technology delivers a 50-year service life, double the typical lifespan in Brazil’s domestic market. The company markets more advanced Sirocco variants internationally, including SiroccoEXTREME with 864 fibers and SiroccoULTRA reaching 1,728 fibers per cable, which Prysmian expects to introduce in Brazil as high-density connectivity demand accelerates.

The partnership with Ufinet and Duraline implemented the 432-fiber version specifically for hyperscale data center interconnection in Barueri and Santana de Parnaíba, regions identified as Brazil’s most dynamic digital infrastructure hubs. Ufinet operates fiber networks across 17 countries with more than 150,000 kilometers of installed capacity. The company previously invested in underground routes connecting Rio de Janeiro data centers to São João de Meriti, completing 65 kilometers of exclusive subterranean network in September 2023.

Brazilian data center capacity is projected to expand from 730 megawatts to 3.2 gigawatts by 2030, with market investments estimated at R$500 billion over the period. Moody’s forecasts global data center investments reaching $3 trillion over five years, driven by artificial intelligence, cloud computing, and economic digitalization. Brazil’s federal government established Redata, a special tax regime providing large-scale incentives for data center installations targeting hyperscale projects. The regulatory framework complements Brazil’s renewable energy mix as an attraction factor for international data center operators. Prysmian positions the technology as enabling FTTx, 5G, and cloud infrastructure deployments while reducing operating costs and environmental impact through optimized material usage.