Noctua shows off improved thermosiphon prototype — passively circulated liquid cooler gets Q3 2027 projected launch date
Noctua has unveiled an improved prototype of its passively circulated thermosiphon liquid cooler, projected for launch in Q3 2027. This innovative cooling solution operates on a simple principle but faces various practical challenges. The latest prototype demonstrated performance comparable to traditional active cooling systems during testing.
- ▪Noctua's thermosiphon CPU heatsink utilizes a closed loop working fluid that changes phase to circulate and cool.
- ▪The company has developed a finned evaporator surface to enhance fluid flow and prevent turbulence.
- ▪The new prototype features a sintered copper layer that improves thermal performance by enhancing capillary action.
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PC Components Cooling Heatsinks Noctua shows off improved thermosiphon prototype — passively circulated liquid cooler gets Q3 2027 projected launch date News By Jeffrey Kampman published 3 June 2026 Simple in principle, challenging in execution When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. (Image credit: Tom's Hardware) Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Tom's Hardware got a chance to visit Noctua's booth at Computex 2026, and we went deep on two key products for the company. The first is the NL-LC1 all-in-one liquid cooler, which we've already covered separately.
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