Data center solutions provider i/o Data Centers has officially opened its 538,000 square-foot Phoenix ONE data center, making it, reportedly, the largest commercially available data center in the US, with an area equivalent to nine football fields.

Located in a refurbished building acquired in January, the Phoenix data center is the company’s second Arizona-based data center, according to i/o Data Centers’ Thursday announcement. Phoenix ONE was designed and built to be highly reliable and efficient, incorporating a number of diverse and green data center systems to provide “always on” operations for its customers and reduce the facility’s overall carbon footprint, including a 4.5 megawatt solar array on its 11-acre roof.

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