Noctua is perhaps best known for its brown fans and conventional air coolers, but it might not be long until it makes its move into the liquid cooling world, too. Noctua founder, Roland Mossig, showed off the prototype of its pumpless thermosiphon cooling unit in Japan this weekend, and according to Japanese tech outlet Hermitage Akihabara it's expected to be released in 2026.
Our Jacob first took a look at the thermosiphon prototype at Computex last year, and came away impressed. Essentially it creates a vapour chamber-like effect by using heat emitted from the CPU to evaporate a refrigerant, which then moves up a vapour tube into a fan-cooled condenser, where it cools off, condenses back to a liquid state, and makes its way back to the CPU to be heated again—no pump required.
