Modern cars and gaming PC´s have gone liquid cooled, and for good reason: it’s cheaper and more reliable to cool with liquid than with air. Even Tesla batteries are liquid cooled.
With a liquid cooled mining rig, the ASIC’s (Application-Specific Integrated Circuit) can be ran reliably cool, extending their longevity, in a narrower and more predictable temperature range, while running higher sustained loads for greater efficiency. ³ This consumes less overall power for a given hashrate and increases the overall profitability of operations.