20% 21-Key Aluminum Gasket Mount Barebones Kit

  • 20% Mechanical Hot-Swap Barebone Kit
  • Aluminum CNC Case (Anodic oxidation, Sandblasting)
  • Wireless & Wired connection: Bluetooth/2.4Ghz/Type-C
  • Gasket Mount & South-Facing LEDs
  • Programmable Via Independent Software

Note: This is a barebones kit that does not include keycaps and switches.

Case Color :
Terms of Service

Free standard shipping to most countries

Enjoy free tax and duty paid to most countries*. Please refer to our shipping FAQ to see if you apply.

Covid-19 Shipping Delay Notice

Shipping may be delayed due to covid-19 depending on your country regulations.

20% Mechanical Hot-Swap Barebones Kit

As a great companion to the predecessor - CK820, this 20% keyboard of CK210 will give you a few extra keys for coding, gaming or just for convenience. You can put this side-to-side with the CK820 or use it as a stand-alone mini pad. No matter what you're looking for, this numpad can meet all your needs with this fully programmable and hot-swappable keyboard.

Solid Aluminum CNC Case

Only the best materials are chosen for this solid and sturdy keyboard. The Aluminum Alloy is known for its hardness and the strong support it provides for the keyboard. It is extremely hard to break or dismantle some thing made of steel. And on top of that, this pad also applied one of Mxrskey's Special, the plate-mounted stabilizers, for extra support on switches, ensuring a disturb-less typing.

Three Connectivity: Bluetooth/2.4Ghz/Type-C

Offering wired stability and wireless freedom at once, the CK210 support three types of connection to meet your changing needs in various scenarios and situations. The type-C port is tight and firm for stable connection, while the Bluetooth 5.0 and 2.4GHz wireless make it easy to control your device in a distance without any scarifies at speed and stability.

Great Sound with Gasket Mount

Just like the Mxrskey CK820, the CK210 is a Gasket Mount Board with two layers of sound-absorbing foam and glass-epoxy ENi/IAu supporting board. The foams are great in noise-canceling to eliminate unwanted noise while the Fr4 board provides clear and crispy clicking sound for greater enjoyment.

Programmable RGB & South-facing LEDs

Flashy RGB with awesome light effects and patterns is a great highlight that this kit features. The south-facing LEDs avoid interference with cherry-profile keycaps. And if the dozens of default light patterns are not enough, this kit also supports customization with a specially-made driver.

Key Amounts
21 keys
Mount Type
Gasket Mount
Case Material
Yes, 3 pins and 5 pins
Battery Capacity
Plate Mount Stabilizers
Programmable with supportive software
OS Compatibility
Windows, Mac, iOS, Android
Typing Angle
6 degrees
  • Keyboard barebones (Aluminum case, PCB, mounting plate, plate-mounted stabilizers, built-in battery)
  • USB Cable*1

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Shipping & Handling

Which countries do you ship to?

We are generally able to ship to most countries via DHL Express, and many countries via Standard Shipping. You may clarify with our team to see whether Standard Shipping is available to your country.

Note: For the country of UK, India and Russia, we can only do Standard Shipping. For countries of Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few, we can only do Express Shipping. Click here to read our Shipping Policy.

How much does shipping cost?

We have two shipping methods - Standard Shipping and Express Shipping.

Standard Shipping Is free for most countries/areas.

Express Shipping via DHL Express is 10-40USD depending on your country. If your order is over 500USD, DHL Express Shipping is free*.

*The GK96S, SK96S, AK84S and NT68 are exceptions for free shipping.

Shipping fees exclude import taxes or processing fees that might be applicable for your country. Epomaker is not responsible for any form of such fees.

How long does it take to receive the order after it is placed?

For in-stock products, your order will be shipped within 3 working days. Customized items will take a longer time (do check in with our staff for more information). On normal non-sale days, once your parcel is shipped:

  • For Standard Shipping, it takes about 2-3 weeks for items to be delivered after it is shipped. For some countries, it might take up to 2-3 months, depending on your country and its custom procedure. The duration for transit is beyond our control. Epomaker does not arrange refunds for such cases. Please consider an upgrade to DHL Express or keep the waiting time in mind.
  • For Express Shipping, it takes about 3-7 days for items to be delivered after shipping out.

*Note: Shipping period might be affected due to festive seasons or other unforeseen circumstances.

Warranty & Returns

7-Day Return Policy

On the ground of disliking a product, you may return any non-customized and non-sales product that is sealed, within the 7 days upon receiving it. To be eligible for a return, your item must be unused and in the same condition that you received it. It also must be in the original packaging.

Customized and sales products, accessories, or spare parts are excluded from the 7-day return policy. The shipping fee, handling fees, or any form of tax caused by return will NOT be refunded. Additionally, a restocking fee (35% of the item’s retail value) will be charged under this circumstance... Click here to read our full return policy.

1 Year Warranty

Epomaker offers a 1-year warranty for keyboards and DIY kits, and offers a 6-month warranty for keycap sets and cases (e.g the case-only product sold separately). Batteries will be covered by the 3-month warranty. Accessories such as keycap pullers, switch pullers, free spare keycaps, cables etc., are excluded from the warranty. To claim for a warranty or confirm whether your product is eligible for return/warranty, please kindly contact us via

The warranty does not extend to any product whose serial number has been defaced or altered, just as the warranty will cease if you make modifications in the software not authorized by Epomaker. Click here to read our full Warranty Policy.

48 Working Hours response to Support Inqueries.

For items that are damaged, incorrect, or faulty upon delivery, you must contact within 7 days upon delivery. You need to provide any solid proof of the problem you come across. Epomaker will help you identify the problem, and may cover the shipping cost according to the agreed amount. Please kindly note that a shipping fee that is extremely higher than the 15% of product value is non-refundable. The shipping fee won’t be refunded if the product is not with any manufacturer defects.

Product Questions

How to choose different switch options?

To choose the suitable switch, it depends on the scenario you use the keyboard and your preference on the typing experience. Here is our helpful guide for your reference: View our Switch Selection Guide

Where can I find the manual/software/driver for my item?

For manuals and software, you may find it in this link: software downloads page

Are there any keyboard with layouts other than ANSI (US Layout)?

As the ANSI is one of the most popular layouts around the world, our keyboards are following this trend for now. For other layouts, we will try our best to make them available on our website in the future.

I want to make myself a DIY keyboard. Where can I find some help?

You may join our Discord to ask for assistance: Click here to Join

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