Firstblood B21

68 Keys Bluetooth Wireless/Wired Retro Mechanical Keyboard

    Original Cherry MX Switches
    Bluetooth 5.0 wireless/wired dual modes
    Control knobs and multimedia keys
    Connect up to 3 devices & compatible with Mac/Win/Android OS
Regular price $126.65
Sale price $126.65 Regular price $149.00

Free standard shipping to most countries

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15-Day Return Policy

15-day no-reason free return and exchange policy, you have ample time to try out your new product and decide if it's right for you.


65% Compact Retro Mechanical Keyboard

EPOMAKER B21 houses 68 keys but is also able to perserve all the essential multimedia and function keys on Mac and Window.  Furthermore, the layout provides natural presentation and location for the arrow, home, page navigation and delete keys - which are often left out in typical compact keyboards. The B21 also comes with control knobs and multimedia keys to offer the same functionalities of a TKL keyboard, but with a much smaller footprint.

Bluetooth 5.0 Wireless/USB Wired Dual Mode

With bluetooth 5.0, it enables to connect your smart phone, your laptop or your tablet to provide an efficient multitasking and speedy performance.  The B21 is built-in with a battery of 4000mAh capacity. Technically, it can last up to 36 hours with the backlights on and 240 hours with the backlights off, depending on our daily usage.

Cross-System flexibility & NKRO

EPOMAKER B21 is compatible with MacOS, Android and WinOS. Switching among operating systems can be an easy move with just one press on the multimedia function key. Moreover, the keyboard is N-key rollover. It prevents the compouter from misidentifying key presses, even when mutiple keys are clicked simultaneously.

Original Cherry MX Switches

Epomaker B21 adopts original Cherry MX switches to achieve a rapid response and you can experience a more reliable and durable keyboard. Here we have three options for your choice: the clicky Cherry MX Blue, the tactile Cherry MX Brown and the linear Cherry MX Red.

SA PBT Keycaps & Dimmable Backlight

Combined with the advanced PBT material, the keycaps stays fade-free, oil-resistant and beautiful. The SA profile makes it round on the surface, which allows a natural guidance for each finger, regardless of the hand position. The B21 is also equipped with a dimmable backlight to increase the visibility under different scenarios.

Technical Specifications

68 Keys
Bluetooth 5.0 / USB wired
5-core 1.6m
Product dimension
317mmm * 148mm * 45.8mm
Inside the box
  • Keyboard
  • USB-C cable
  • Instruction manual


Customer Reviews

Based on 5 reviews


Buggy and unsupported

The flaws of this keyboard are many. Functions keys (F1 etc., should be available via Fn+1) do not work in wired mode. Missing the `~ key to the left of 1 is awkward (available via Fn+Esc). The reversal of print on the equals key (it looks like the unshifted key will return "+") is surprisingly annoying. I miss not having a built-in USB hub for daisy chaining a mouse.

But the worst is that it is completely unsupported to remap the keys on a firmware level or even to fix outright bugs, like the F-keys.

The cherry keys themselves are OK, though.

Its so heavy

The bluetooth switching is nice but that’s about it. Its so incredibly heavy and the dials don’t really do much unless you’re on a mac. I wish I hadn’t purchased it.


Thank you for leaving a review here. We appreicate your opinion on the keyboard.

If you meet any problems when using the keyboard, please feel free to contact us by emailing to and attaching your order number and a video to show the issue. Our support will be happy to help you out.

Thank you for your understanding.

Kind regards,
Epomaker Team

Adam Repp
Better than expected!

I pre-ordered my B21 via the Indiegogo campaign, and have been very pleased with my purchase. The Bluetooth handoff between multiple devices (Win 10 and Android) has been working flawlessly for me, and the battery life without backlight seems to exceed the specifications (perhaps because of aggressive built-in power management - it takes a single keystroke to wake from sleep, so don't expect the keyboard to detect input immediately if you've been AFK for 10+ minutes).

Were there some hiccups with my order? Yes, absolutely. The pandemic disrupted production and US inventory ended up in limbo at a California port due to problems outside of EPOMAKERs control. However, communication from the manufacturer was prompt and my keyboard was shipped express at no added cost once it arrived at the distribution center.

I will say that I was a bit frustrated with my missing braided cable, and have been exchanging emails with Peter for several months to figure out where my parts order was and why it was missing. However, this was recently resolved in a professional manner. A lot of things "went wrong" with my order, all of which were outside of EPOMAKER's control. I can't fault them for that, and I'm impressed by their service recoveries.

Final note: I'm not into modding keyboards and purchased this unit in hopes of finding a wireless workhorse. The B21 does the job and does it well!

PS - Where can I find quality keycaps with clear characters? It would be nice to maximize the effect of my backlight! Also, replacement knobs in different colors?

Cora Borgens
Was excited....but not mod friendly

Bought this as the kickstarter and was really excited for it. Love the knobs and bluetooth features, however, it is not mod friendly. Switches are not hot-swap which wasn't the worst...except you can't get the PCB out either without completely breaking the plastic casing. So any sort of tape, foam mod or even swapping out switches is out of the question.
Not worth the list price.