Currently, cost-efficient, sustainable and resource-saving IT infrastructures are among the major trends in the data center and IT industry. With open source hardware and the Open Compute Project (OCP) this can be achieved. The project was founded by Facebook and other major customers, among other things to accelerate innovations in data centres. maincubes offers the only European OCP Experience Center in Amsterdam with CirceB and Rittal, where OCP hardware can be tested. But what exactly is open source hardware and how can it be used? What are the advantages of an OCP-based data centre infrastructure? The new whitepaper answers these and other questions to prepare you best for a future-proof basis for a modern IT infrastructure.