Liquid cooling can improve the efficiency of a data center as it provides an optimal and more targeted cooling. For example chilled water can be transferred directly to a rack of servers which is quite helpful as we want to provide cooling to specific places. Instead of trying to “balance” a desirable temperature throughout an entire room, it initializes the cooling process in the exact point that is needed; at a particular rack or cabinet. On the other hand, the use of liquid-based systems inside a data center could have some cons. Possible leaks are definitely a huge threat for the entire IT apparatus, transport of liquid may cause condensation and since the chilled liquid must be contained somewhere it requires more technological equipment and a suitable framework inside the data center; so in this case we need more resources. For the above reasons, although liquid-based systems are proved to be more reliable and effective, they appear to be quite expensive with respect to air cooling techniques and slightly more difficult to implement.