Coolers News Noctua's Next Big Thing: Liquid Cooling and Thermosiphons | Technical Deep-DiveJune 2, 2025Last Updated: 2025-06-02Noctua's Computex 2025 showcase includes engineering and design information on their new Thermosiphon cooler and CPU liquid coolerThe HighlightsNoctua shows off its upcoming AIO liquid coolerThe company also shows off its new NF-A12 G2 fanNoctua also discusses its Antec Flux Pro Noctua Edition PC caseTable of ContentsAutoTOC Grab a GN15 Large Anti-Static Modmat to celebrate our 15th Anniversary and for a high-quality PC building work surface. The Modmat features useful PC building diagrams and is anti-static conductive. Purchases directly fund our work! (or consider a direct donation or a Patreon contribution!)IntroWe visited Noctua’s booth at Computex, where the company showed off its upcoming liquid cooler, which is set to launch in Q1 2026. Once again, we have to give Noctua an award for least RGB LED BS we’ve seen at a trade show as we couldn’t find any in their booth.Editor's note: This was originally published on May 20, 2025 as a video. This content has been adapted to written format for this article and is unchanged from the original publication.CreditsHostSteve BurkeCamera, Video EditingMike GaglioneVitalii MakhnovetsWriting, Web EditingJimmy ThangThe company showed off its AIO liquid cooler prototype, which consisted of 3D printed pieces that are intended to go into the pump block to reduce some of the most annoying aspects of liquid coolers with pumps as opposed to thermosiphons. The fan that goes on top of the pump block is an existing Noctua fan that they’ve reshaped the frame for. And it’s optional to mount on top and it projects the air out towards the memory and VRM components. We also looked at the company’s thermosiphon, which was briefly shown at Computex last year. It is a 2-phase thermosiphon, which means that it does a phase change. This makes it comparable to a heat-pipe in a way. We also got to see a bunch of different types of cold plate designs.We also got another look at the Noctua x Antec Flux Pro case, which we previously covered at Antec’s booth.G2 FansNoctua showed off its 120mm G2 fan, which also appears in the shroud top of the Antec Flux Pro case. A couple things have changed about the fan, which include the RPM offset being a little different.Grab a GN Soldering & Project Mat for a high-quality work surface with extreme heat resistance. These purchases directly fund our operation, including our build-out of the hemi-anechoic chamber for our acoustic testing! (or consider a direct donation or a Patreon contribution!)When we reviewed the NH-D15 G2, the RPM offset between the 2 fans was about 25, but the fans we saw at Computex are about plus or minus 50.  Noctua provided some first-party data and stated that on a 120x49mm water cooler radiator comparing the G2 fan versus the company’s NF-A12x25 fan under a 200W heat-loud, the G2 fan performed roughly 3 degrees cooler, which is really good.    Paired with an air cooler, there was about a 1 degree difference between the 2 fans, which is a lot for an air cooler. Noctua Liquid CoolerFor its liquid cooler, Noctua is working with Asetek, using the company’s Gen 8 V2 platform.  Asetek has been around for a long time and they’re one of the biggest suppliers. In the old days, they worked with Corsair, NZXT, and basically everyone’s stuff.The landscape has diversified a bit. Apaltek has gotten really big as a supplier. For as much s*** we’ve given Asetek over the years, in our experience, they’ve had fewer widespread failures of gunk buildup compared to competing solutions. Noctua MouseWe don’t cover mice, but Noctua also showed off a mouse with a small fan built into it. Noctua's Jakob Dellinger Interview Visit our Patreon page to contribute a few dollars toward this website's operation (or consider a direct donation or buying something from our GN Store!) Additionally, when you purchase through links to retailers on our site, we may earn a small affiliate commission.We wrapped up our Noctua coverage by interviewing Noctua’s Jakob Dellinger. Make sure to watch our Computex video where we do a deeper dive into the company’s upcoming liquid cooler, how a thermosiphon works, and more.