FEKER JJK21 Numpad Kit

Gasket Mount Hot Swappable Bluetooth 5.0/2.4GHz/Wired Mechanical Numpad Kit

  • 20% ANSI Layout with a Rotary Knob
  • Triple modes: Bluetooth/2.4GHz/Type-C wired
  • Gasket Mount & PC Mounting Plate
  • Hot Swappable with 3pin & 5pin Switches Like Cherry, Gateron, Kailh, AKKO, Otemu, etc.
  • RGB Backlights with Several Light Effects
Regular price $47.99
Sale price $47.99 Regular price $59.99

Free standard shipping to most countries

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

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.


A Numpad Kit with A Knob

Is it possible for a numpad to transform into a full function keyboard? Make it programmable! The Feker JJK21 numpad kit follows this resolution to be programmable by the supportive software, additionally with a knob to convenient for media control. With a 21-key PCB, this numpad has the space and processing power to handle your most demanding tasks.

Bluetooth 5.0 & 2.4GHz Wireless & Wired Modes

More than being wireless, we make this kit in triple modes, that is to say, the Bluetooth technology and ultra-fast stable 2.4GHz wireless, plus Type-C wired mode. The software can also be connected under the bluetooth and 2.4G wireless mode. Triple modes will be accommodating a variety occasions, such as trip, office, home, etc. It truly saves bulky accessories and terrible transmission.

Gasket Mount & PC Mounting Plate

Typing feelings matter. To achieve a superb performance, FEKER JJK21 features gasket mount with a PC mounting plate, which works perfectly together to offer a soft and bouncing typing experience. What's more, a set of silicon foams are equipped to absorb sound while typing and also reduce shallow sound of bottom case

Hot Swappable PCB

FEKER JJK21 numpad kit adopts a hot swappable PCB that can work with most 3pin/5pin switches, such as Cherry, Gateron, Kailh, AKKO, Otemu... Hot swappable PCB means that you don’t need to solder the switch and it’s easier for those who love different types of typing experience.

RGB Backlights & Detachable Type-C Connection

Apart from working on acoustic end, FEKER JJK21 numpad also presents a great visual by dazzling RGB backlights. It provides several RGB effects and colors for you to set. To maintain a stable signal transmission, the kit comes with a detachable type-C cable for wide compatibility and convenient use. The type-C interface ensures fast and stable connection, compatible for most mainstream devices. Just feel free to change your desk setup without any worries.

Technical Specifications

20%, 20 keys + 1 knob
Triple modes: Bluetooth/2.4GHz/Type-C wired
Plate Material
Yes, 3-pin & 5-pin
Stabilizer type
Anti-ghosting Keys
1500mAh rechargeable Li-ion battery
Cable Length
System Compatibility
Windows only
Inside the box
  • Keyboard Customized Kit (Case+PCB+EVA Foam+Stabilizers+1*Positioning Plate+1*Battery)
  • Type-C Cable
  • 1*2.4G receiver
  • 1*Manual


Customer Reviews

Based on 5 reviews
Great numpad + knob (if you forgot to get one on the main keybd and you happen to like numpads lol)

Honestly this thing is great. The gasket and sound sound thick without lubing or mods, and the structure is pretty solid feeling (this thing weighs like a pound or two lol). I see a lot of people concerned about the automatic sleep mode and how it makes the numpad not register the first click or volume change, but this is only a problem in Bluetooth or 2.4 mode, and when its plugged in (and in OFF mode) its constantly on. Granted, it automatically turning off is a bit of an issue even if its only in non-wired mode, but the other upsides make up for this tiny blip.

Software is being blocked by Windows

The software is being blocked by Windows.


We sincerely apologize to hear the issue..

To better solve this case, please contact our support team via support@epomaker.com.

Please don't worry, I will report to my team. They will fix the the software as soon as possible..

We feel so sorry again if it causes any inconvenience brought to you.

Kind regards,
Epomaker Team

Jacob Woodruff
Great little suppliment numpad for smaller keyboards

This numpad has been one of my favorite recent purchases. The wireless is very snappy and painless to pair. I use it to pull out when I need to enter a lot of numbers for work but then put it away for playing games. Its a great little addition and it even has surprisingly solid gasket performance and the stabilizers on mine are very solid.

Fails at its primary function - data input

Even when wired the keypad will go to sleep and not send the first key press. It makes using it almost impossible as there is a big risk the data you are entering will be incorrect unless you are carefully watching every time you use it.

Even full keyboards at half the cost of this keypad send the first key press.

Dear Customer,

We apologize for the inconvenience you've experienced with our keypad. Your feedback is essential to us, and we're committed to addressing your concerns promptly to improve our product's performance.

We understand the importance of reliable data input and are investigating the issue with the keypad going to sleep, even when wired. This behavior is not up to our standards, and we're working diligently to resolve it to ensure seamless functionality.

Thank you for bringing this matter to our attention, and we appreciate your patience and understanding as we work to resolve it.

Best regards,
Support Team at Epomaker





キーボードに何か問題がある場合は、support@epomaker.com でお気軽にお問い合わせください。


Dear customer,

Thank you for your comment!

If there is any issue with the keyboard, please feel free to contact us via support@epomaker.com.

We will troubleshoot the issue and give you a satisfactory reply.

Best regards,
Epomaker Team