The star of the show was certainly the thermosiphon liquid cooler prototype that works without a pump by implementing a two-phase thermosiphon. In short, it heats a fluid which then evaporates and cools back down in a vapor tube and condenser, making a complete cycle. It is a simple solution similar to how a heatpipe works, and the only drawback is that the radiator has to be mounted at the top in order for it to work, as the thermosiphon relies on gravity. Of course, it also means that there are no pump noise, vibrations, or failure risk from the pump.

In addition, Noctua brought the new NH-D15 G2 CPU cooler, the upgraded version of the popular NH-D15. The new version gets two more heatpipes, leaving it with 8, 20 percent more surface area thanks to new fin stacks with reduced fin pitch, and better clearance due to offset design. The new CPU cooler will be paired up with new NF-A14x25 G2 fans, which will be available in a round frame, square frame, and chromax.black versions. The new NF-A14x25 G2 fan gets SS02 bearing and Advanced Acoustic Optimisation (AAO) frame design, a new progressive-bend impeller made from Sterrox liquid-crystal polymer, as well as a lower 0.7mm tip clearance, which should give it a better performance on heatsinks and radiators.

The new NH-D15 G2 should launch later this month, while the NF-A14x25 G2 fan comes later this month in the standard round frame version and September for the square frame version. The chromax.black version will come early next year.

Noctua also showcased a couple of its future products, the next-gen 120 mm fan, which will improve the performance of the popular NF-A12x25 and use the same design and feature set as the upcoming NF-A14x25 G2 fan, by further reducing tip clearance, as well as the new dual-tower CPU cooler, which will bring the same level of performance as the NH-D15 but in a 120 mm form-factor. Both are coming in Q2 next year.