Equipment manufacturers are no longer merely suppliers of data center infrastructure, but key players in this transformation. How can we strike a balance between standardization, industrial modular prefabrication, and extreme customization of data centers? This roundtable offers a practical, no-nonsense look at the technical, economic, and environmental choices that are redefining data center design in 2026, as well as the strategic role of equipment manufacturers in these trade-offs. ● Standard vs. Custom: A False Debate? Balancing rapid deployment, costs, performance, and long-term adaptability. ● Modular and prefabricated: industrial promises or operational limitations? ● Equipment manufacturers at the heart of innovation ● Sovereignty and the supply chain: a blind spot? ● Toward “equipment-driven” data centers? When technical constraints dictate the overall architecture, at the expense of flexibility.