KiiBOOM Phantom 21


21 Keys Wired & Wireless Mechanical Keypad

  • Versattile Control Knob
  • South-facing RGB LEDs
  • Bluetooth 5.0 Wireless/Wired Keypad With 1900mAh Battery
  • NKRO anti-ghosting
  • Preminum Build&Acrylic Case
Color :
Terms of Service

Free standard shipping to most countries

Enjoy free shipping 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.


The KiiBOOM Phantom 21 isn't just a keypad; it's a statement of efficiency and elegance. It's specifically designed for those who demand precision, flexibility, and style in one compact package.


With 21 optimally placed keys, the Phantom 21 brings the power of a full-sized keyboard into a numeric-focused design. Experience an unhindered workflow, perfect for crunching numbers, data entry, and even gaming.


The multi-functional control knob is a game changer. Adjust volumes, zoom into details, scroll through documents, or customize it for any function you need. It’s tactile, intuitive, and seamlessly integrated.


Dive deep with KiiBOOM's proprietary software. Assign complex macros, set up key remapping, and switch profiles. The power to tailor is in your hands.


Embrace a build quality that boasts durability and sophistication. The Phantom 21’s brushed metal finish and robust keys promise longevity while maintaining a sleek, modern aesthetic.


A symphony of colors awaits. With customizable effects, dynamic patterns, and a full spectrum of hues, the Phantom 21 isn’t just functional—it’s visually mesmerizing.


Say goodbye to tedious setups. Plug in, play, and let the Phantom 21 elevate your computing experience instantly.


Fluent in multiple OS languages, the Phantom 21 flawlessly integrates with Windows, Mac, or Linux.


Whether you're a financial guru, a coding maestro, or an enthusiast looking for streamlined input, the Phantom 21 is your indispensable ally.


Designed for portability without compromise. Its compact nature and protective design ensure the Phantom 21 remains pristine, from boardrooms to cafes.

Select the best switch for your style.

Before choosing what type of mechanical or optical switch, we need to understand it is mostly about preference. You need to look into what will work best for you and what you will use your keyboard for the most. Our Epomaker GK series, and some of our other keyboards allow for hotswappability. This means that even if you dislike the current switch you bought, you can swap it to another switch. Which switch you can swap to depends on your keyboard type.

Number of Keys
21 Keys
Case Material
Stabilizer Type
PCB Type
Hot-swappable with 3/5-pin Mechanical Switches
South-facing RGB LEDs
NKRO anti-ghosting
USB-C, Bluetooth 5.0, 2.4GHz Wireless
  • Phantom 21 Keyboard
  • 1.5m Cable
  • Instructional Manual
  • Packing Cloth

Customer Reviews

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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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