Integrated immersion system for servers

A data center, comprising:

• a plurality of containers, wherein each of the containers is configured to receive one or more server blades that are at least partially submerged within a two-phase coolant contained within the container, each server blade having electronics therein, which when operate, generate heat to be transferred into the two-phase coolant thereby causing at least some of the two-phase coolant to turn into a vapor;
• and
• a cover panel to cover the container, wherein each container comprises:
• a liquid region defined to contain the two-phase coolant therein, and
• a vapor region defined between the cover panel and a surface of the two-phase coolant, wherein the cover panel includes a plurality of slots, wherein at least one of the slots is configured to allow a server blade to be inserted into the liquid region and at least partially submerged into the two-phase coolant, and wherein at least one of the slots is configured to allow a condensing unit to be inserted into the vapor region.