In the modular data center, different parts of a real data center are placed in separate modules and assembled together after being transported to the desired site. In the situation where the desired number of racks for the data center is large, so that a standard 40 feet container does not have the capacity to accommodate this number of racks, the server room and its racks are placed in a number of standard containers and after coupling these Separate parts to each other, a data center with a large capacity is created.