What makes the Leobog K21 Number Pad unique?

The Leobog K21 Number Pad stands out due to its hot-swappable PCB, allowing you to easily switch between different 3-pin and 5-pin switches without soldering. This feature is perfect for users who enjoy experimenting with various typing experiences.

Can I use the K21 Number Pad wirelessly?

Yes, the K21 offers triple connectivity modes: Bluetooth 5.0, 2.4GHz wireless, and Type-C wired. This versatility allows you to seamlessly switch between devices and connection types based on your needs.

Does the Leobog K21 support both linear and tactile switches?

Indeed, the K21 is designed to support a wide range of switches, including Cherry, Gateron, Kailh, AKKO, and Otemu, thanks to its hot-swappable feature. You can customize your typing feel with either tactile or linear switches.

How does the PC mounting plate enhance typing on the K21?

The PC mounting plate in the K21 Number Pad provides a soft and bouncy typing experience. Combined with EVA foam, it helps absorb sound and minimizes noise, offering a quieter and more comfortable typing session.

What kind of battery life can I expect from the Leobog K21?

The K21 is equipped with a 600mAh battery, ensuring long-lasting performance. While actual battery life will depend on usage patterns, the efficient design supports extended use, especially in wireless modes.

Is the Leobog K21 compatible with my operating system?

The K21 Number Pad is compatible with Windows XP, 7, 8, and 10. Its versatile connectivity options make it a great addition to any setup.

What tools or accessories come with the K21 Number Pad?

The package includes a Type-C cable for wired connectivity, a 2.4GHz dongle for wireless use, and a user manual to help you get started.

How does the anti-ghosting feature benefit me?

The K21's NKRO (N-Key Rollover) anti-ghosting ensures that every keystroke is registered accurately, even when multiple keys are pressed simultaneously. This is particularly beneficial for fast typists and gamers who require precision.

Leobog K21 Starting at $38.99

Name: Leobog K21
Brand: Leobog
SKU: leobog-k21-wireless-transparent-number-pad

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Leobog K21
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LEOBOG K21 Transparent Wireless Number Pad
	Shipping to US	-		$39 Out of stock	Visit Shop

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Leobog K21

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LEOBOG K21 Transparent Wireless Number Pad

Shipping to US

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Compare Leobog K21 vs Epomaker EK21 vs Lelelab LeleDesign Leee Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!

Model	Leobog K21	Epomaker EK21	Lelelab LeleDesign Leee
	69	83	70
Rating	0.0 stars (0 reviews)	4.5 stars (13 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2022 Uses a Plate Mount mounting style Equipped with a 600 mAh battery Sized at 37 x 82 x 120 mm Made with a Plastic case Features PBT, ABS keycaps Offers Yes, Rgb, White RGB lighting	Released in 2025 Has Linear switch options Comes with a knob Supports VIA configuration Uses a Gasket Mount mounting style Runs at a 1000 Hz polling rate Equipped with a 1000 mAh battery Sized at 29 x 138 x 93 mm Made with a ABS case Features PBT keycaps	Released in 2026 Includes a Yes, OLED display Provides dedicated media keys Supports Wired, Wired only connectivity Sized at 23 x 123 x 91 mm
Score	Scores Performance: 72.1 Build Quality: 60 Productivity: 80 Customizability: 70.7 Portability: 88.9	Scores Performance: 77.4 Build Quality: 76.9 Productivity: 87.4 Customizability: 82.6 Portability: 88.1	Scores Performance: 57 Build Quality: 64.3 Productivity: 56.7 Customizability: 85.6 Portability: 70.6
Name	Name Leobog K21	Name Epomaker EK21	Name Lelelab LeleDesign Leee
Release year	Release year 2022	Release year 2025	Release year 2026
Switch Options	Switch Options -	Switch Options Linear	Switch Options -
Profile	Profile Normal Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size Numpad	Layout Size Numpad	Layout Size Numpad
Layout Standard	Layout Standard ANSI	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support	Display Support OLED
Mac/Win Support	Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Wired, Wired only
Polling Rate	Polling Rate -	Polling Rate 1000 Hz	Polling Rate -
Battery capacity	Battery capacity 600 mAh	Battery capacity 1000 mAh	Battery capacity -
Hall Effect Support	Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Plate Mount	Mount Style Gasket Mount	Mount Style -
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, White	Backlight Rgb	Backlight Rgb
Case Colors	Case Colors	Case Colors	Case Colors
Case Material	Case Material Plastic	Case Material ABS	Case Material -
Keycaps Material	Keycaps Material PBT, ABS	Keycaps Material PBT	Keycaps Material -
Dimensions	Dimensions 37 x 82 x 120 mm	Dimensions 29 x 138 x 93 mm	Dimensions 23 x 123 x 91 mm
Weight	Weight 200g	Weight 200g	Weight -

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Product Description

The Leobog K21 Number Pad is a compact, hot-swappable numpad designed for users who want flexible switch customization and multiple connectivity options. It suits office workers or hobbyists who need a dedicated number pad with wireless and wired modes, and prefer the ability to change switches without soldering. Its tactile switches and sound dampening features make it suitable for quieter typing environments.

Key Features

Hot-swappable PCB supports most 3-pin and 5-pin switches, allowing easy switch replacement without soldering.
Triple connectivity modes: Bluetooth 5.0, 2.4GHz wireless, and Type-C wired, offering versatility for different setups.
Anti-ghosting with NKRO ensures all key presses register accurately during fast input.
Includes software for Windows to customize key functions and settings.

Build Quality and Typing Experience

PC mounting plate provides a soft, bouncing typing feel compared to metal plates, which may reduce finger fatigue.
Equipped with EVA foam inside the case to absorb sound and reduce hollow noise, making typing quieter.
Uses Leobog Icesoul tactile switches with moderate actuation force and pre-lubed stems for smoother keystrokes.

Connectivity

Bluetooth 5.0 mode is suitable for wireless use with moderate latency, ideal for casual typing.
2.4GHz wireless offers a more stable and faster connection, better for low-latency needs.
Type-C wired mode provides a reliable, no-latency connection and charging simultaneously.

Compatibility

Compatible with Windows XP and later versions; software customization is Windows-only.
Supports standard numpad layout with 21 keys, fitting most numeric input workflows.

Trade-offs

Software support is limited to Windows, excluding macOS and Linux users from customization options.
PC mounting plate may feel less rigid than metal alternatives, which some users might find less precise.
Battery capacity is 600mAh, but exact battery life is unknown, which may affect long wireless sessions.

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