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Keychron K2 HE Concrete Edition: One-minute review
The Keychron K2 HE Concrete Edition is one of the more unusual keyboards to land on my desk in recent memory, purely because it’s made of concrete. I mean, it’s right there in the name.
The concrete bottom casing sports a pleasant speckled finish with a satisfying density to it, while color-matched gray PBT keycaps pull the whole aesthetic together into something that looks like it was hewn from a single slab. It’s a genuinely distinctive design, and the fit and finish throughout is strong, sustaining Keychron’s fantastic build quality, but just with a different material altogether.
Under the hood, the K2 HE Concrete Edition features Gateron’s potent double-rail Nebula switches which feel excellent under finger. Paired with Keychron’s clever Launcher software, it also provides access to features such as rapid trigger, analog actuation, dynamic keystroke and more besides to make this a very potent gaming keyboard indeed.
Connectivity covers Bluetooth, 2.4GHz wireless, and wired USB-C, allowing the keyboard to be connected to up to three devices, backed by a 4,000mAh battery rated for up to 240 hours with the lights off, which is pretty strong. The only thing more pro-grade players may not be as content with is the lack of a proper 8000Hz polling rate, although for most mere mortals, it’s completely fine.
Then we get to the price: $199.99. That’s a hefty premium to pay for this concrete variant of a keyboard that’s otherwise identical to the standard $130 K2 HE inside, especially when a similar price (or slightly less) can net you some of the other best gaming keyboards out there that are a little more performance-focused, such as the Cherry Xtrfy K5 Pro TMR Compact and Corsair K70 Pro TKL.
With this in mind, keyboards as versatile and feature-rich as the K2 HE Concrete Edition from bigger manufacturers, such as the SteelSeries Apex Pro TKL Wireless Gen 3, will command a higher price.
Keychron K2 HE Concrete Edition Price and availability
- $199.99
- Available now
- Towards the top end of the market
The Keychron K2 HE Concrete Edition is available to purchase online now from a variety of retailers, including Amazon and Keychron’s own store for $199.99. It doesn’t seem to be natively available in the UK, though. This puts it more towards the top-end of the gaming keyboard market, especially as it carries a bit of a premium over the standard K2 HE with purely cosmetic upgrades.
To be fair to Keychron, you do get a fair bit in the box, with the keyboard itself alongside a keycap and switch puller, plus cables, USB receiver and documentation. There is also a wrist rest available, although that is a separate purchase.
For a similar (or lower price), you can get other Hall effect gaming keyboards, such as the Cherry Xtrfy K5 Pro TMR Compact and the Corsair K70 Pro TKL. Other more pro-oriented products, such as the Razer Huntsman V3 Pro TKL and the SteelSeries Apex Pro TKL Wireless Gen 3, cost a bit more, though.
Keychron K2 HE Concrete Edition: Specs
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Layout: |
75% |
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Switch: |
Gateron Nebula Double Rail |
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Programmable keys: |
Yes |
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Dimensions: |
12.7 x 5.2 x 1.41 inches / 322 x 132 x 36mm |
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RGB or backlighting: |
Yes (customizable) |
Keychron K2 HE Concrete Edition review: Design and features
- Partially concrete chassis
- Immensely sturdy
- Rich software when digging into it
The talking point of the K2 HE Concrete Edition is right in the name, with some of the chassis being made of, well, concrete. Of course, the entire keyboard couldn’t be comprised of the material, owing to its fragility in smaller elements, but Keychron has tried its best to put it where it matters.
For instance, the entire bottom casing of this keyboard has a pleasant speckled finish and a dense thickness to it that marks it out as concrete. Even if that’s as far as the use of the material goes, I’m still a big fan of it. It’s a keyboard that reminds me of the funny Roger Stevens Building from my days at the University of Leeds, with an almost brutalist finish.
Keychron’s keyboards have a bit of a reputation for their heft, and I’ve noted in the past that the likes of the Q1 Pro and Q60 Max models in my own collection could conceivably be used as weapons with their machined aluminum finish. The concrete chassis on the K2 HE Concrete Edition takes that to another level, tipping the scales at 3.5lbs / 1.59kg – for a smaller form factor keyboard like this one, that’s seriously heavy.
The fit and finish elsewhere is strong, with color-matched grey PBT keycaps that look excellent and feel pleasant under finger. PBT is a more durable plastic than the swathes of ABS I’m used to seeing on more mainstream keyboards, and is also much less resistant to the horrible keycap shine that plagues ABS-capped boards after a fair amount of use.
The 75% layout on offer here is a favorite, providing a good blend of functionality and the ability to save desk space. We get everything from a proper F-row to arrow keys and a single-column nav cluster, plus the usual alphanumeric keys. It’s essentially a TKL layout that’s been squished up a smidgen.
On the left side of the chassis is where you’ll find the interface, with a USB-C port for charging and wired connectivity, plus toggle switches for both Bluetooth and 2.4GHz operation, and for switching between Windows and macOS. The only thing I think is a slight shame is that there isn’t a place to store the USB receiver when it isn’t in use.
Keychron’s lightweight, web-based Launcher handles software and customization duties for this keyboard, providing identical functionality to the standard K2 HE models. You can fiddle with actuation points on a scale from 0.5mm to 3.8mm of the switch’s travel on a per-key basis, while dealing with things such as rapid trigger, analog powers, dynamic keystroke and so on. It’s a slick and feature-rich interface that I think other brands could learn something from.
- Design and features score: 4 / 5
Keychron K2 HE Concrete Edition review: Performance
- Brisk and responsive TMR switches
- Rapid trigger powers, plus more advanced software choices
- Versatile wireless connectivity
As much as Keychron has fiddled with the outside of the K2 HE Concrete Edition, the inside remains unchanged from the original keyboard. That means we’re getting Gateron’s double-rail Nebula switches, which are a linear TMR switch with a smooth and brisk keypress and lots of customization to make this a powerful gaming keyboard.
You actually have to dig into the spec sheet to find that these are TMR switches, rather than Hall effect, which is something we’re seeing become more common with gaming keyboards in 2026. Without getting too much into the weeds, TMR stands for Tunnel Magneto-Resistance, and is a technology we’ve mostly seen applied to game controllers rather than keyboards. It’s essentially designed to offer a greater degree of precision and general responsiveness over the litany of Hall effect products we see in controllers and keyboards.
It’s also meant to be more power efficient, theoretically helping the rated battery life of wireless keyboards such as the K2 HE Concrete Edition.
These Gateron double-rail Nebula switches, on their own, are a 40g linear switch that felt surprisingly responsive for general productivity tasks. Sometimes magnetic switches such as these can feel a little soulless for extended periods, but that isn’t the case here. Being pre-lubricated, they also benefit from being especially smooth under finger, helping both their acoustics and perceived responsiveness.
Technically, the K2 HE is also hot-swappable, although much like a lot of other TMR and Hall effect gaming keyboards out there, the choice of switches you can swap in is minuscule. Not even all of Gateron’s other Hall effect switch models are compatible.
As much as this is a keyboard you can use for general day-to-day stuff, it’s most at home when you’re in games, and when you’ve fiddled about in software for a little bit. It’s here where I chose to set the actuation and reset points as high as they’d go for the WASD and weapon select keys in Counter-Strike 2, essentially turning those switches into hair trigger. It meant inputs required very little effort, which becomes very handy in quick-draw scenarios where you need to bring a weapon out or throw a grenade as quickly as possible.
Configuration in Keychron’s Launcher software for this is easy, as it’s possible to select a few switches, and then set actuation and reset points with one slider in one fell swoop. It can also be done globally if you want it across all switches.
The software also opens up much more advanced means, such as dynamic keystroke and multiple actuations per key, so you can go through one switch’s travel and do everything from walking to running, and even crouching without moving a finger to a neighboring switch. It’s a handy addition for FPS titles, preventing you from needing to stretch across the keyboard for other controls, depending on how you have it mapped.
Also hidden in the software are analog powers, unlocking this keyboard’s ability to be used with controller-like precision. This makes playing racing games such as my customary Forza Horizon 5 much easier with a keyboard, although I still prefer the intuitiveness of a controller, or even better, a proper wheel and pedals setup.
Keychron provides its own flavor of SOCD tech with the K2 HE Concrete Edition. This allows you to activate one key while holding down the other for especially quick actions. In this instance, it works based on the most recent one pressed; for instance, if mapped to the A and D keys, it can allow for unnaturally quick side-to-side movement. It’s very clever, although not something you’ll probably use too much in online games, given Valve wields the ban hammer for anyone who uses it in online Counter-Strike 2 games.
As with the Cherry Xtrfy K5 Pro TMR Compact I tested recently, the key thing with this keyboard is whether you’ll notice the purported step up in precision and responsiveness against more ‘normal’ Hall effect choices. Even as someone rather well-versed in these types of products, it isn’t necessarily something I can appreciate as much as the pro-grade players this keyboard is arguably designed for. I want to believe it’s making a difference, of course, although it’s hard to scientifically judge without turning this review into more of an engineering paper.
The K2 HE Concrete Edition connects via Bluetooth, a bundled 2.4GHz or over wired means, and will work on up to three devices. I’ve found pairing and connectivity to be stable and easy in my week of testing. It is a shame that more pro-grade players don’t get an 8000Hz polling rate wired or wireless for even brisker input reporting, although for most folks, the standard 1000Hz will be more than fine.
The 4000 mAh battery inside is also rather large for a keyboard of this size, and powers it for up to 72 hours with the vivid backlighting on. Turn it off, and that rises to 240 hours, which is excellent endurance.
Should I buy the Keychron K2 HE Concrete Edition?
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Attribute |
Notes |
Score |
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Design and features |
The K2 HE Concrete Edition ticks the right boxes when it comes to offering a unique and solid build, not least with its use of concrete. The fit and finish elsewhere is strong, too, and we’ve also got versatile wireless connectivity and software to go with it. |
4 / 5 |
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Performance |
The K2 HE Concrete Edition is a very responsive keyboard with smooth and brisk TMR switches, complete with extensive rapid trigger and software configuration. It lacks an 8000Hz polling rate, although how useful this is to mere mortals remains to be seen, though. |
4 / 5 |
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Value |
The K2 HE Concrete Edition sits towards the top end for such a potent gaming keyboard, and offers a beefy set of features and construction. There is quite the premium for a purely cosmetic upgrade, though. |
4 / 5 |
Buy it if…
Don’t buy it if…
Keychron K2 HE Concrete Edition review: Also consider
How I tested the Keychron K2 HE Concrete Edition
- Tested for around a week
- Used for gaming and productivity across Windows and macOS
- A decade of experience as a journalist and mechanical keyboard hobbyist
I tested the K2 HE Concrete Edition for around a week, using it as my main keyboard for work and play during this time with both Windows and macOS.
I played various games, including Counter-Strike 2 and Forza Horizon 5, to best gauge its optical switches for speed, precision, and the benefit of its TMR switches. I also made sure to use Keychron’s web-based Launcher software to test every facet of the keyboard.
I’ve been a tech journalist for the best part of a decade, and have reviewed plenty of keyboards in that time from brands big and small. I’m also a mechanical keyboard enthusiast, so I have a keen eye for peripherals and have been involved with the hobby before it hit the mainstream.
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