Which of the following is not a source of ancillary revenue in data centers?

Ancillary revenue in data centers typically refers to income generated from services that support the core business of providing data storage and processing, but do not involve the direct sale of these primary services. In this context, building construction fees are not considered a source of ancillary revenue because they pertain to the capital expenditures involved in developing or expanding the physical structure of the data center itself, rather than the ongoing operations or services provided within that facility.

On the other hand, remote hands or managed services provide additional support to clients, allowing them to manage their equipment without being physically present. Cross-connect fees are charges for the connection services between different networks or systems within the data center, enabling better communication and data transfer. Cooling services for high-density racks are critical as they ensure that the equipment operates efficiently without overheating, which is essential for optimal performance. All these options enhance the value of the core data center operations and contribute to ancillary revenue, while building construction fees stand apart as a foundational investment expense rather than an ongoing income stream.