OCP Ready certified colocation data center in the Amsterdam metro with 5 MW capacity, in operation since 2018.

A 5 MW carrier-neutral facility in the Amsterdam metro, maincubes AMS01 has operated in its current form since a major redesign completed in 2018 and was among the first European sites to earn OCP Ready certification, awarded in 2020, having previously hosted Europe's first OCP Experience Center. Its roughly 3,800 sqm of whitespace is split into rooms from 100 to 1,100 sqm, letting customers take anything from a private suite to a few racks, with densities supported up to 20 kW per rack. Cooling is a closed-loop water-based system with a design PUE of 1.6 or better, and maincubes backs the site with a 100% availability SLA. The facility runs exclusively on green electricity and holds an extensive certification stack: ISO 27001, ISO 9001, ISO 14001, ISO 50001, SOC 1 and SOC 2 (ISAE 3402), plus EMAS and OekoPLUS environmental registrations. Connectivity spans BT, Colt, Cogent, Eurofiber, GTT, KPN, Verizon, Vodafone and others via the Amsterdam fiber ring, making AMS01 a fit for enterprises and OCP-based deployments wanting mid-size, high-availability capacity.