---
product_id: 410611785
title: "Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black)"
brand: "cosmic byte"
price: "R20"
currency: ZAR
in_stock: false
reviews_count: 5
url: https://www.desertcart.co.za/products/410611785-cosmic-byte-cb-gk-18-firefly-per-key-rgb-tkl
store_origin: ZA
region: South Africa
---

# 18 preset RGB configs Swappable Outemu Red switches Compact TKL design Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black)

**Brand:** cosmic byte
**Price:** R20
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Light up your game and workspace with Firefly brilliance! 🎆

## Quick Answers

- **What is this?** Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black) by cosmic byte
- **How much does it cost?** R20 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/410611785-cosmic-byte-cb-gk-18-firefly-per-key-rgb-tkl)

## Best For

- cosmic byte enthusiasts

## Why This Product

- Trusted cosmic byte brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Smart TKL Layout:** Compact tenkeyless design frees up desk space for a sleek, clutter-free workstation.
- • **Ergonomic Comfort Design:** Textured, contoured keycaps plus adjustable fold-out legs for fatigue-free productivity.
- • **Seamless Software Control:** Intuitive macro programming and per-key RGB customization to personalize your keyboard experience.
- • **Customizable RGB Brilliance:** 18 dynamic preset lighting modes to match your vibe and setup.
- • **Precision Mechanical Switches:** Swappable Outemu Red switches with optical sensors for ultra-responsive gaming and typing.

## Overview

The Cosmic Byte CB-GK-18 Firefly is a tenkeyless mechanical keyboard featuring swappable Outemu Red switches and per-key RGB lighting with 18 presets. Designed for gamers and professionals alike, it offers ergonomic keycaps, adjustable typing angles, and compact dimensions to optimize desk space. Its braided Type-C cable enhances durability and portability, while dedicated software enables macro programming and full RGB customization.

## Description

Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black)

Review: Very smooth operation... Red switches aren't that clicky... If you want clicky sound just go for the blue ones... No bluetooth support... But does the work well... Good build quality... Metal frame and with sturdy base... An overall good product... I bought at around 2k...
Review: You can get same kind of mechanical wired keyboard within 1700-1800/- but not with type C cable. So, Why you need it: If you travel with keyboard then cable might get damaged. In this case it's best keyboard within this price, rgb brightness is decent, typing feeling is good and software support also good. Why you don't need it: If your keyboard is fix with PC/Laptop then you can go with another wired type mechanical keyboard with less price. Because cable will not get damaged. Some baseless features: 1. Macro key: Trust me a part some specific game you are not going to use it 2. Perkey RGB: Initially you will enjoy but after few months you are not going to change rgb style. But you can make a logo in keyboard.

## Features

- Enhance your gaming experience with 18 preset configurations on mechanical keyboard and find a unique one to match your own system.
- The Firefly comes with customized Outemu Red Mechanical switches to ensure best quality and are equipped with optical sensors for precise gaming and comfortable typing.
- Textured and contoured keycaps provide maximum grip and enhanced feel. No matter how fast your in-game actions are, every key press registers correctly.
- The compact design of the keyboard takes up minimum tablespace for a neater and cleaner workstation.
- With keycaps leaning backward and forward design to make the typing more comfortable, the fold-out legs allows you to choose the best typing height.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08VWGK688 |
| Are Batteries Included | No |
| Best Sellers Rank | #130,848 in Computers ( See Top 100 in Computers ) #3,940 in Computer Keyboards |
| Brand | Cosmic Byte |
| Color | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (1,943) |
| Date First Available | 28 April 2021 |
| Hardware Platform | PC |
| Item Weight | 920 g |
| Item model number | CB-GK-18 |
| Manufacturer | Cosmic Byte |
| Operating System | Windows 10 |
| Power Source | Corded Electric |
| Product Dimensions | 35.8 x 13.5 x 3.5 cm; 920 g |
| Series | Firefly |

## Product Details

- **Brand:** Cosmic Byte
- **Compatible devices:** Laptop
- **Connectivity technology:** Usb
- **Keyboard description:** Gaming
- **Recommended uses for product:** Gaming

## Images

![Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black) - Image 1](https://m.media-amazon.com/images/I/61MtcaC55EL.jpg)
![Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black) - Image 2](https://m.media-amazon.com/images/I/71uvyaWUhdL.jpg)
![Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black) - Image 3](https://m.media-amazon.com/images/I/61lVdOKLYSL.jpg)
![Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black) - Image 4](https://m.media-amazon.com/images/I/61sX+osJ57L.jpg)
![Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black) - Image 5](https://m.media-amazon.com/images/I/61FMiuyrIwL.jpg)

## Available Options

This product comes in different **Pattern, Color, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***A on 22 February 2026*

Very smooth operation... Red switches aren't that clicky... If you want clicky sound just go for the blue ones... No bluetooth support... But does the work well... Good build quality... Metal frame and with sturdy base... An overall good product... I bought at around 2k...

### ⭐⭐⭐⭐ Review
*by A***E on 17 February 2026*

You can get same kind of mechanical wired keyboard within 1700-1800/- but not with type C cable. So, Why you need it: If you travel with keyboard then cable might get damaged. In this case it's best keyboard within this price, rgb brightness is decent, typing feeling is good and software support also good. Why you don't need it: If your keyboard is fix with PC/Laptop then you can go with another wired type mechanical keyboard with less price. Because cable will not get damaged. Some baseless features: 1. Macro key: Trust me a part some specific game you are not going to use it 2. Perkey RGB: Initially you will enjoy but after few months you are not going to change rgb style. But you can make a logo in keyboard.

### ⭐⭐⭐⭐ Review
*by S***U on 31 December 2025*

Build quality is good. Key spacing is also good. Its a small keyboard so portability is not an issue too since you can just put it in your bag with your laptop. The wire is braided but for some reason mine got some internal damage after some time of normal usage and works only in a certain position. 2 keys were not working after 7-8 months of usage so since the keys are replaceable I interchanged some function keys with these two and works fine now. I mostly used it for gaming and coding.

## Frequently Bought Together

- Cosmic Byte CB-GK-18 Firefly Per-Key RGB TKL Mechanical Keyboard with Swappable Outemu Red Switch, Macros, Software (Black)
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-04-25*