Mechanical keyboard for a steal! Alza's Eternico K800S Wireless is wireless, has great switches, and a Czech layout

  • The Eternico K800S is a wireless mechanical keyboard with Gateron Brown switches, RGB backlighting, and Czech localization
  • With AlzaPlus+, it costs 979 CZK instead of 1,399 CZK
  • Rated 4.6 out of 5 by 44 customers and can connect to up to five devices simultaneously

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Jakub Kárník
Jakub Kárník
4. 8. 2026 10:30
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A wireless mechanical keyboard with Czech legends for under a thousand is something that didn’t exist just a few years ago. AlzaPlus+ members can now buy the Eternico K800S for 979 CZK instead of 1,399 CZK. One Slovak reviewer summed it up perfectly: “An almost comically good keyboard, especially in terms of price/performance. Five to ten years ago, an equivalent keyboard would have cost around 150 euros.”

👍 Get it if you want to try a mechanical keyboard with Czech localization and switch between your computer, laptop, and tablet.
🤔 Hesitate if you rely on touch typing – the compact 75% format has no gaps between key blocks, and it takes some getting used to.
💰 Price: 979 CZK for a wireless mechanical keyboard with backlit Czech characters and a three-year warranty.

Five Devices and Backlit Czech

Connectivity here is unusually generous: a 2.4GHz USB receiver, three separate Bluetooth connections, and a USB-C cable, totaling up to five devices with one-touch switching. The Gateron Brown switches are tactile, so you’ll feel a clear actuation point when typing, but they don’t make the clicking noise of blue switches – one user described the sound as “amazing, not noisy at all, but at the same time I know well that I pressed the key.” Their lifespan is 60 million presses.

A detail that is repeatedly mentioned in reviews and not found elsewhere: the Czech characters are also backlit. On cheaper keyboards, diacritics are often just glued-on stickers, but here they light up along with the rest of the key – one reviewer called it “a luxury in this price category.” Furthermore, you can manage RGB settings directly from the keyboard without software installation, and the 3,750 mAh battery lasts a very long time with the backlighting off. You can also switch between Windows and macOS modes.

What Users Criticize

Twenty-nine written reviews provide a good overview, and three criticisms are repeated. The first is battery life with backlighting on – one user estimates it at about two days of intensive use; without it, it’s significantly more. The second is compactness: the 75% format has no gaps between function keys, arrow keys, and the PgUp block, so touch orientation takes some getting used to, and the shift key sits right above the left arrow. The third is the absence of configuration software like VIA – everything is set via key combinations, which is sufficient for most, but keyboard enthusiasts will miss it.

Minor issues also appeared: one user reported rattling side switches, another mentioned occasional hard sleep mode, which can be resolved by turning it off and on again. Overall, however, the tone of the reviews is unusually enthusiastic – “I didn’t expect this keyboard to offer so much for this money, I take my hat off to it,” writes one of the latest reviewers.

Do you type on a mechanical keyboard, or do you prefer low-profile membrane ones?

About the author

Jakub Kárník

Jakub is known for his endless curiosity and passion for the latest technologies. His love for mobile phones started with an iPhone 3G, but nowadays… More about the author

Jakub Kárník
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