YUNZII C21 Wireless Mechanical Numpad Keyboard & Calculator
$54.99
- Cute Cake Keyboard 20% Layout
- The new YUNZII C21 cute mechanical numpad series brings a sweet touch to your desk with its colorful design and included detachable plush tail.
- As the perfect numeric companion to the C75 series, it shares the same adorable look and high-quality build.
- Featuring a compact 20% layout with 18 keys and a built-in TFT screen, tri-mode connectivity, and a creamy typing feel, this cute wireless numpad is a charming addition to any home, office, or gaming setup.
- The detachable tail hook lets you DIY your own style, making it a delightful gift for mechanical keyboard lovers.
Product details
Product Description
About this item
Cute Cake Keyboard 20% Layout
The new YUNZII C21 cute mechanical numpad series brings a sweet touch to your desk with its colorful design and included detachable plush tail. As the perfect numeric companion to the C75 series, it shares the same adorable look and high-quality build. Featuring a compact 20% layout with 18 keys and a built-in TFT screen, tri-mode connectivity, and a creamy typing feel, this cute wireless numpad is a charming addition to any home, office, or gaming setup. The detachable tail hook lets you DIY your own style, making it a delightful gift for mechanical keyboard lovers.
2-in-1 Numpad & Calculator with Built-in Game
The C21 mechanical keyboard is both a mechanical numpad and a standalone calculator. Switch modes with one key and handle everyday math right on your desk — no need to open a calculator app on your phone or computer. It's a handy tool for accountants, bookkeepers, and anyone in financial accounting, making data entry and quick calculations faster and easier. It also features a TFT screen with a built-in Snake game, supports custom animations and GIFs, and displays time, date, and connection status by default.
Creamy Typing with Gasket Mount
The C21 cute number pad keyboard is built with a gasket-mounted structure, an optimized sound package with multiple sound-absorbing foam layers, and silicone padding, paired with pre-lubed SAGE and Candy linear switches. This combination softens every keystroke, reduces hollow noise, and creates a smooth, creamy typing sound with a soft, bouncy feel. The hot-swappable sockets support both 3-pin and 5-pin mechanical switches, so you can easily swap switches to match your preferred typing feel. The C21 number pad delivers both good looks and solid performance.
Tri-Mode Connectivity & Multi-Device Support
The C21 wireless numpad supports Bluetooth, 2.4GHz wireless, and wired Type-C connections, allowing you to easily switch between up to 5 devices. Simply plug in via USB, pair via Bluetooth, or use the 2.4GHz dongle, and it's ready to go with your laptop, tablet, or smartphone. Compatible with Windows, Mac, Linux, Android, and iOS — no driver installation needed. Whether you're crunching numbers in Excel on a PC, entering data on a Mac, or managing spreadsheets on a tablet, the C21 wireless keyboard adapts instantly.
Per-Key RGB & Customizable Numpad
The C21 customer keyboard comes with front RGB lighting and side ambient lighting with a frosted finish. You can switch lighting effects quickly with keyboard shortcuts, or dive into the web driver to customize per-key RGB, choose from nearly 20 preset effects, or create your own. You can also remap keys, configure Fn layers, and save custom layouts to fully adapt the numpad to your workflow. Gaming, data entry, creative work — switch anytime, match anytime.
Long-Lasting Battery & Durable Keycaps
The C21 mechanical numpad is equipped with a 2500mAh battery, far outlasting standard numeric keypads, providing long-lasting use on a single charge with no need to recharge frequently. Whether for work, gaming, or everyday number input, it stays with you all day. Paired with PBT dye-sublimation MOA keycaps for comfortable typing and fade-resistant legends, the C21 is built to last.
Specifications
Product: YUNZII C21
Type: Tri-Mode Wireless Custom Mechanical Numpad Keyboard & Calculator
Layout: 20% Layout, 18-Key, and 1 TFT Screen
RGB: South-facing RGB and Side-Light
Color Choices: Pink, Beige, Purple, Coffee
Switch Choices: YUNZII Candy Linear Switch/YUNZII Sage Linear Switch
Modes Supported: Keyboard Mode, Calculator Mode, Gaming Mode
Structure: Gasket Mounted
Battery: 2500mAh
Connection: 2.4G Wireless&Wired Type-C&Bluetooth
Size of Product: 98.3*152.56*38.9mm/3.87*6.01*1.53inch
Screen Aspect Ratio: 428*142px
Weight of Product: 250±10g/0.551±0.022lb
Keycaps: Dye-Sublimation PBT MOA Profile Keycaps
Hot Swappable: Full-key hot-swappable, supports 3-pin or 5-pin mechanical keyboard switches.
Customization: Supports Windows and macOS dual-system software and online website customization.
NKRO: YES
Product specifications
| Color Choices | Pink, Beige, Purple, Coffee |
|---|---|
| Size of Product | 98.3*152.56*38.9mm/3.87*6.01*1.53inch |
| Weight of Product | 250±10g/0.551±0.022lb |
| Compatibility stated by source | Compatible with Windows, Mac, Linux, Android, and iOS — no driver installation needed |
| Materials described by source | silicone |
| Brand | YUNZII MECHANICAL KEYBOARD |
| Materials | silicone |
| Colors | Pink, Beige, Purple, Coffee Brown |
| Color | Pink | Beige | Purple | Coffee Brown |
| Switch | YUNZII Candy Linear Switch | YUNZII Sage Linear Switch |



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