Fujitsu has announced that it will begin selling its Fujier Server PRIMERGY liquid immersion cooling system in Japan. This product is a cooling system designed to efficiently cool all IT devices by immersing them in a coolant fluid. No large-scale cooling equipment is required, so the system reduces the overall power consumption of the server system by approximately 40% compared to existing air-cooling systems. 
Product features
1. Highly efficient cooling technology significantly reduces energy and space requirements
By immersing a server in a liquid with high heat conduction and electrical insulation properties, this system efficiently cools the entire server evenly. Furthermore, because the heat generated by the server is not emitted into the server room, air conditioning equipment is not required for such areas or other facilities. The cooling system also provides high energy efficiency because the server does not require internal cooling fans, with a power usage effectiveness ratio (PUE, 3) of 1.07. This not only reduces the server system's total energy consumption by approximately 40% compared to other cooling systems (including their cooling equipment), but also allows for roughly double the server density in the same installation space, contributing to a lower total cost of ownership (TCO).
2. Easy maintenance
By utilizing Fujitsu's specially developed and sealed "immersion bath," this system minimizes refrigerant vaporization. System maintenance remains very easy because the refrigerant used is also non-flammable, harmless to humans, and does not need to be replaced regularly as its quality does not deteriorate.
3. Fujitsu provides a comprehensive solution, from installation to after-sales support
Fujitsu offers a comprehensive solution for everything from the installation of an immersion bath and refrigerant distribution units (CDUs, 4) to plumbing, server operations maintenance, and post-installation support, including equipment maintenance. Furthermore, since this system is offered as an option for Fujitsu's PRIMERGY series (5) of x86 servers, the latest models can be retrofitted to this immersion system in the future. Immersion bath for the liquid immersion cooling system.
A server is removed from the cooling fluid.
Because a server immersed in coolant is not exposed to outside air, it can be installed in a variety of environments that are not suitable for installing existing servers, such as regions of high temperature and high humidity, manufacturing sites that have oils or dust in the air, or in coastal areas where there are concerns about salt damage.
