---
product_id: 227516626
title: "Cosmic Byte CB-GK-16 Firefly TKL Mechanical Gaming Keyboard | Per-Key RGB | 3 PIN Swappable Outemu Blue Switches | Upgraded with Detachable USB-C Port | Macro & Software Support (Black)"
brand: "cosmic byte"
price: "€ 64.25"
currency: EUR
in_stock: true
reviews_count: 8
category: "Cosmic Byte"
url: https://www.desertcart.pt/products/227516626-cosmic-byte-cb-gk-16-firefly-tkl-mechanical-gaming-keyboard
store_origin: PT
region: Portugal
---

# Per-Key RGB with 18 presets 3-PIN Swappable Outemu Blue switches Detachable USB-C port Cosmic Byte CB-GK-16 Firefly TKL Mechanical Gaming Keyboard | Per-Key RGB | 3 PIN Swappable Outemu Blue Switches | Upgraded with Detachable USB-C Port | Macro & Software Support (Black)

**Brand:** cosmic byte
**Price:** € 64.25
**Availability:** ✅ In Stock

## Summary

> 🔥 Level up your game with the Firefly’s blazing RGB and pro-grade switches!

## Quick Answers

- **What is this?** Cosmic Byte CB-GK-16 Firefly TKL Mechanical Gaming Keyboard | Per-Key RGB | 3 PIN Swappable Outemu Blue Switches | Upgraded with Detachable USB-C Port | Macro & Software Support (Black) by cosmic byte
- **How much does it cost?** € 64.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/227516626-cosmic-byte-cb-gk-16-firefly-tkl-mechanical-gaming-keyboard)

## 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

- • **Seamless Connectivity:** Upgraded detachable USB-C cable ensures fast, reliable connection and easy portability.
- • **Macro & Software Support:** Tailor your commands and shortcuts effortlessly with advanced macro programming and intuitive software.
- • **Vibrant Customizable RGB:** Illuminate your setup with 18 dynamic lighting presets that sync perfectly with your gaming vibe.
- • **Compact & Ergonomic Design:** Save desk space with a sleek TKL layout featuring contoured keycaps and adjustable typing angles for all-day comfort.
- • **Precision Mechanical Switches:** Experience tactile, clicky Outemu Blue switches engineered for ultra-responsive gameplay and typing.

## Overview

The Cosmic Byte Firefly CB-GK-16 is a compact tenkeyless mechanical gaming keyboard featuring tactile Outemu Blue switches with 3-PIN swappability, per-key RGB lighting with 18 presets, and an upgraded detachable USB-C port. Designed for gamers and professionals alike, it offers ergonomic keycaps, macro support, and a durable build that fits neatly into any workspace.

## Description

Product Description Comparison Chart Firefly CB-GK-16 Firefly CB-GK-34 Firefly CB-GK-37 Firefly CB-GK-18

Review: Amazing product , best keyboard - The Cosmic Byte Firefly CB-GK-37 is a great budget mechanical keyboard if you want eye-catching RGB, a solid compact build, and decent performance for gaming or typing at its price point. That said, its software and long-term reliability can be hit-or-miss — so it’s best for budget-minded buyers or first-time mechanical keyboard users rather than pros demanding long-term durability.
Review: Great mechanical keyboard for the price. - Really impressed with the build and typing experience. The keys feel tactile and responsive, with a satisfying click that’s not too loud. The backlighting looks nice and adds to the overall look, especially at night. I’ve used it for both gaming and work, and it performs well in both cases. Feels durable and well-built. If you’re looking for a good mechanical keyboard without spending too much, this is a solid choice.

## 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 Blue 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.
- Upgraded with Detachable USB C Cable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08G1QVK9D |
| Antenna Location | Gaming |
| Best Sellers Rank | #2,210 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #38 in Gaming Keyboards |
| Box Contents | Keyboard x 1 |
| Brand | Cosmic Byte |
| Brand Name | Cosmic Byte |
| Button Quantity | 87 |
| Colour | Black |
| Compatible Devices | PC |
| Connectivity Technology | USB |
| Country of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 6,709 Reviews |
| Enclosure Material | Plastic |
| Generation | 3rd Generation |
| Hand Orientation | Ambidextrous |
| Importer Contact Information | Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi. cc@thecosmicbyte.com Pune 412308, Maharashtra, India |
| Item Dimensions L x W x H | 35.8L x 13.5W x 3.5H Centimeters |
| Item Type Name | Keyboard |
| Item Weight Unit of Measure | 990 Grams |
| Keyboard Backlighting Color Support | RGB |
| Keyboard Description | Gaming |
| Keyboard Layout | QWERTY |
| Language | English |
| Manufacturer | Cosmic Byte, Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi. Pune 412308, Maharashtra, India |
| Manufacturer Contact Information | Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi. Pune 412308, Maharashtra, India |
| Model Name | Firefly |
| Model Number | CB-GK-16 |
| Number of Keys | 87 |
| Packer Contact Information | Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi. Pune 412308, Maharashtra, India |
| Product Features | Backlit, Ergonomic, Hotkeys and Media Keys |
| Recommended Uses For Product | Gaming |
| Special Feature | Backlit, Ergonomic, Hotkeys and Media Keys |
| Style Name | Blue Switch |
| Switch Type | Clicky |
| Unit Count | 1 Count |
| Warranty Description | 1 Year warranty against manufacturing defects only |

## Product Details

- **Brand:** Cosmic Byte
- **Compatible Devices:** PC
- **Connectivity Technology:** USB
- **Keyboard Description:** Gaming
- **Recommended Uses For Product:** Gaming

## Images

![Cosmic Byte CB-GK-16 Firefly TKL Mechanical Gaming Keyboard | Per-Key RGB | 3 PIN Swappable Outemu Blue Switches | Upgraded with Detachable USB-C Port | Macro & Software Support (Black) - Image 1](https://m.media-amazon.com/images/I/61MtcaC55EL.jpg)
![Cosmic Byte CB-GK-16 Firefly TKL Mechanical Gaming Keyboard | Per-Key RGB | 3 PIN Swappable Outemu Blue Switches | Upgraded with Detachable USB-C Port | Macro & Software Support (Black) - Image 2](https://m.media-amazon.com/images/I/71uvyaWUhdL.jpg)
![Cosmic Byte CB-GK-16 Firefly TKL Mechanical Gaming Keyboard | Per-Key RGB | 3 PIN Swappable Outemu Blue Switches | Upgraded with Detachable USB-C Port | Macro & Software Support (Black) - Image 3](https://m.media-amazon.com/images/I/61lVdOKLYSL.jpg)
![Cosmic Byte CB-GK-16 Firefly TKL Mechanical Gaming Keyboard | Per-Key RGB | 3 PIN Swappable Outemu Blue Switches | Upgraded with Detachable USB-C Port | Macro & Software Support (Black) - Image 4](https://m.media-amazon.com/images/I/71CxAmiOjjL.jpg)
![Cosmic Byte CB-GK-16 Firefly TKL Mechanical Gaming Keyboard | Per-Key RGB | 3 PIN Swappable Outemu Blue Switches | Upgraded with Detachable USB-C Port | Macro & Software Support (Black) - Image 5](https://m.media-amazon.com/images/I/61sX+osJ57L.jpg)

## Available Options

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

## Questions & Answers

**Q: is rgb controlable with software or hardware**
A: Hardware. Fn + Insrt key lets you change the rgb modes.

**Q: Is it completely mechanical or semi mechanical??**
A: 100% mechanical kb.

**Q: Is it full rgb? like for example zebronic max pro. which is full rgb. is this the same?**
A: Its full rgb n not single color

**Q: Does it have braided cable? Or norm?**
A: Braided

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing product , best keyboard
*by H***H on 9 February 2026*

The Cosmic Byte Firefly CB-GK-37 is a great budget mechanical keyboard if you want eye-catching RGB, a solid compact build, and decent performance for gaming or typing at its price point. That said, its software and long-term reliability can be hit-or-miss — so it’s best for budget-minded buyers or first-time mechanical keyboard users rather than pros demanding long-term durability.

### ⭐⭐⭐⭐ Great mechanical keyboard for the price.
*by A***H on 26 July 2025*

Really impressed with the build and typing experience. The keys feel tactile and responsive, with a satisfying click that’s not too loud. The backlighting looks nice and adds to the overall look, especially at night. I’ve used it for both gaming and work, and it performs well in both cases. Feels durable and well-built. If you’re looking for a good mechanical keyboard without spending too much, this is a solid choice.

### ⭐⭐⭐⭐⭐ Very good quality mechanical keyboard for the price
*by A***N on 3 April 2024*

The Cosmic Byte Firefly is a very good keyboard indeed. Pros- *Build quality- It is a very solid and well built device with the top part in steel and the bottom part in plastic. It is pretty heavy but it is a mechanical keyboard so no surprises there. *Accuracy- The keyboard is very accurate for typing. *RGB-RGB is definitely very good. It has a selection of many single colors and mixed ones too. *Hot-swappable keys- The keyboard has hot swappable keys which means that the switch itself can be replaced with other Outemu switches. I'm not sure if other brands switches can be used. Cons- *Typing sound- If you are going to buy this keyboard and type a lot, do not buy the blue switch version. I really underestimated the sounds of the blue switch. It sounds like an actual typewriter. It is pretty much annoying as it is making too much noise. The red switch version can be better if you type a lot as it is more quiet. Also, other people may find it disturbing. So buy blue switches only if you have a separate room. *Dedicated Caps lock indicator-It actually does Caps lock and scroll lock indicators in the keys itself, but it is not visible if the RGB color is white as the indicator colors are also white which can be confusing. So I would suggest Cosmic Byte to put dedicated Caps lock and Scroll lock indicators. *Portability- The keyboard is huge and heavy which makes it pretty hard to carry it around. The packaging they sent the keyboard in was very good. It came in a cardboard box inside a sealed bag. Overall a very good keyboard for 2000-2500₹.

## Frequently Bought Together

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-24*