21 keys Hotswappable RGB Wireless & Wired Numpad

  • 21 Keys Standard Layout
  • Transparent PC Case & PBT Keycaps
  • 18 Pre-set RGB Effects
  • Triple-Mode Connectivity: Bluetooth5.0,2.4Ghz,Type-C
  • Durable 600mAh Battery
Color Theme :
Switch :





21 Keys Standard Layout

The K21 features a conventional 21-key numpad layout, making it ideal for data entry, gaming, and numerical input. The hot-swappable design allows for easy customization and maintenance.

Transparent PC Case with Pudding Keycaps

The transparent PC case beautifully showcases the RGB lighting, further enhanced by the pudding-style keycaps. This combination not only adds to the visual appeal but also allows for more prominent RGB illumination.

18 Pre-set RGB Effects

With 18 default RGB lighting effects, enjoy a vibrant and dynamic backlighting experience. Customization is made possible with driver support, allowing you to personalize your numpad to your liking.

Triple-Mode Connectivity

Offering unparalleled flexibility, the K21 can connect with up to three devices simultaneously. Easily switch between devices with Bluetooth mode, enjoy the fast and stable connection of 2.4Ghz wireless within a 10-meter range, or opt for the reliability of a Type-C wired connection.

Durable 600mAh Battery

The built-in 600mAh battery ensures long-lasting performance. The FN key light flashes to indicate low battery, stays on during charging, and turns off when fully charged.

Specifications for Custom Switch
LEOBOG Ice Crystal Switch
  • Type: Linear
  • Pin: 5 pins
  • Factory Lubed: Yes
  • Material: POM Stem, PC Housings
  • Initial Force: 29gf
  • Actuation Force: 35±3gf
  • Bottom-out Force: 48±3gf
  • Total Travel: 3.7±0.3mm
  • Actuation Travel: 1.8±0.3mm
  • Lifespan: 60 Million Keystrokes
  • 製品仕様
    Connectivity Technology
    Bluetooth5.0, 2.4Ghz, Type-c Wired
    Number of Keys
    Keycaps Material
    Battery Capacity
    • EPOMAKER x LEOBOG K21 Numpad
    • Type-C Cable
    • Manual
    • Keycap Puller

    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 support@epomaker.com.

    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 support@epomaker.com 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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