It looks like EK is making a thermoelectric CPU cooler

EK water blocks have not announced that it's building a thermoelectric Peltier cooler (TEC), but Linus Sebastien used one in his latest LTT video, so the company must be at least experimenting with the idea.

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The Linus Tech Tips YouTube channel released a video called "The Fastest Gaming PC in the World!...For Now!," which features a cherry-picked Core-i9 10900K with a hefty 5.4GHz overlock on it. To achieve that level of performance, Linus used a cooler from EK Water Blocks that he said he isn't allowed to talk about, but he did show it off.

The cooler in question is a huge CPU block with an EK logo in the center. Linus said it's one of the heaviest coolers he's held in a while. He also pointed out a few leads that come out of the block, hinting at what is unique about it.

Linus also noted that it requires a PCI-E power lead, which gives it away: The unannounced block is likely a thermoelectric cooling device that uses the Peltier effect to extract heat from the CPU.

Peltier coolers aren't new, but they are rarely used because the technology requires a significant amount of electrical current to function. Linus used a 1600w power supply for this build, which reinforces our conclusion that this new EK block is a TEC for extreme overclocking.