Keychron’s Concrete K2 HE Is Heavy, Quirky, and Surprisingly Satisfying
Keychron has released a keyboard made of concrete, transforming a material typically associated with scraped knees and bike-tire skid marks into the foundation of a typing device. The K2 HE uses concrete only for the case, while the keycaps remain standard plastic, making it a different proposition from the company’s earlier ceramic keyboard. Despite the absurd premise, the keyboard delivers a genuinely well-made and coherent experience that fares better than Keychron’s previous novelty attempt.
Absurdity and Brutalism
When testers first started using the K2 HE, mentioning “yeah, I’m actually reviewing a keyboard made of concrete right now” prompted every single person to ask to see it. The very nature of the material — something seemingly absurd to the average person — makes the keyboard a true conversation piece. Concrete is often viewed as industrial, lacking taste or refinement, and reserved entirely for utilitarian applications where function trumps form. In media, it frequently serves as a visual shorthand for a soulless world devoid of joy and whimsy. Artists and architects love it, and apparently, so do cats.
The reviewer was drawn instantly to the idea of a concrete keyboard, citing the ironic humor that comes with a premium object like a high-end keyboard being made from the most basic and bland of materials. However, this is not the first concrete keyboard by any means — quite a few DIY and limited-run concrete and cement keyboards have appeared online over the years. None of these have been as widely available as the K2 HE, which can be ordered and received in a matter of days instead of months (or, in the case of some group buys, years).
Performance and Sound Profile
Surprisingly, the choice to use concrete is beneficial to this keyboard. It sounds great and feels responsive to type on. For a novelty-adjacent keyboard like this, one of the most important aspects is the user experience — the strange choices need to justify themselves in some way, instead of being both ridiculous and useless. The switches are smooth, and the sound profile is a pleasantly rounded, deep tone that isn’t very common today. It has subtle notes in the mid- and high-frequency range that creates a more “full” sound, especially on the upstroke of a key when released, but none of these are so extreme that the main tone is muddied or diluted. This is one of the better-sounding keyboards that has been tested, according to the review.
While it is certainly not a purpose-built, gasket-mounted keyboard, it is good enough to justify the silly choice of materials. The typing experience is not particularly special but is passable. The concrete combines with the switches to create a slight softness at the bottom of a keypress, without being so soft that it feels mushy or unpleasant. Instead, it feels as if the harsher sensation of bottoming out is being absorbed by a fairly porous material, while the density prevents vibrations from spreading too far. The stabilizers are PCB-mounted, which is preferable to the typical plate-mounted units found on many keyboards.
Connectivity and Customization
The K2 HE offers Bluetooth and 2.4G connectivity with a USB-A dongle, alongside extensive performance adjustments through software. However, in-browser customization requires a physical connection, and the concrete case introduces significant tradeoffs in weight and practicality. The novel case material is paired with great switches and keycaps that deliver an enjoyable typing experience.
Tradeoffs and Limitations
The concrete case has significant tradeoffs in weight and practicality, and the in-browser customization requires a physical connection. There is a lack of aftermarket switch options, which may limit users looking to customize further. Despite these drawbacks, the keyboard received a rating of 8 out of 10 from reviewers, who praised the novel case material, great switches and keycaps, enjoyable typing experience, extensive performance adjustments through software, and the dual Bluetooth and 2.4G connectivity with a USB-A dongle.
Market Context
As of May 30, 2026, Bitcoin is trading at $73,500 (24-hour change: -0.1%), while Ethereum is at $2,013.62 (24-hour change: +0.2%). The broader hardware market continues to see niche products like the K2 HE pushing material innovation, even as mainstream keyboard sales remain stable.