Two-Phase, or Not Two-Phase. After all, that is the question. At least it is for data center cooling architects and planners seeking to maximize cooling efficiency and performance for their ever-growing fleets of servers with the use of liquid-cooling. The use of water-based cold plate and dielectric immersion liquid cooling solutions have seen rapid increases in adoption over the past few product generations with a growth rate that continues to accelerate. With the acceptance (or to borrow the cliché “democratization”) of liquid in the data center, would-be customers of liquid-cooled servers are now turning their attention towards two-phase (or latent) liquid cooling technologies based upon these fluids’ non-conductive properties and potential for improved performance and efficiency when compared to water-based cold plate and single-phase immersion solutions.