---
product_id: 618192701
title: "CB-GK-39 Trinity 3 Modes WiFi + Bluetooth + Wired Optical Swappable Blue Switch Keyboard, Per Key RGB, 100 Million Life Switches, 3000mAh Battery, Fast Response, Software Support (Black)"
brand: "cosmic byte"
price: "€ 108.29"
currency: EUR
in_stock: true
reviews_count: 8
category: "Cosmic Byte"
url: https://www.desertcart.be/products/618192701-cb-gk-39-trinity-3-modes-wifi-bluetooth-wired-optical
store_origin: BE
region: Belgium
---

# Zero Latency Optical Switches Per-Key RGB Lighting 3 Modes Connectivity CB-GK-39 Trinity 3 Modes WiFi + Bluetooth + Wired Optical Swappable Blue Switch Keyboard, Per Key RGB, 100 Million Life Switches, 3000mAh Battery, Fast Response, Software Support (Black)

**Brand:** cosmic byte
**Price:** € 108.29
**Availability:** ✅ In Stock

## Summary

> 🌌 Elevate your desk game with cosmic speed and style!

## Quick Answers

- **What is this?** CB-GK-39 Trinity 3 Modes WiFi + Bluetooth + Wired Optical Swappable Blue Switch Keyboard, Per Key RGB, 100 Million Life Switches, 3000mAh Battery, Fast Response, Software Support (Black) by cosmic byte
- **How much does it cost?** € 108.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/618192701-cb-gk-39-trinity-3-modes-wifi-bluetooth-wired-optical)

## 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

- • **Durable Premium Build:** Enjoy fade-resistant double-shot ABS keycaps and hot-swappable switches for easy customization and lasting reliability.
- • **Long-Lasting 3000mAh Battery:** Stay unplugged longer with a powerful rechargeable battery designed for marathon work or gaming sessions.
- • **Seamless Triple Mode Switching:** Effortlessly toggle between WiFi, Bluetooth (up to 3 devices), and wired modes for ultimate multitasking freedom.
- • **Customizable Per-Key RGB Spectra:** Personalize your setup with 16.8 million colors and 19 dynamic lighting effects via intuitive Windows software.
- • **Lightning-Fast Optical Blue Switches:** Experience ultra-responsive, clicky feedback with zero latency and a staggering 100 million keystroke lifespan.

## Overview

The Cosmic Byte CB-GK-39 Trinity is a versatile 87-key mechanical keyboard featuring ultra-fast optical blue switches with zero latency and a 100 million keystroke lifespan. It offers triple connectivity modes—2.4GHz wireless, Bluetooth (up to 3 devices), and wired—ensuring seamless device switching. With a robust 3000mAh rechargeable battery and fully customizable per-key RGB lighting supporting 16.8 million colors, this keyboard blends high performance with personalized aesthetics. Its durable double-shot ABS keycaps and hot-swappable design make it a reliable choice for professionals and gamers seeking both style and substance.

## Description

Product Description

Review: "As a professional gamer, I demand the best equipment, and this gaming keyboard delivers. - Key Features: Triple Connectivity Modes: WiFi, Bluetooth, and Wired: Offers versatile connectivity options to seamlessly switch between devices and ensure stable connections, whether you're gaming, working, or just browsing. Battery Life: 3000mAh Rechargeable Battery: Provides long-lasting power, reducing the need for frequent recharges and ensuring uninterrupted usage during extended sessions. RGB Lighting: 16.8 Million Spectra RGB with Per Key Customization: Each key can be individually lit with one of 16.8 million colors. This feature, coupled with the 19 different backlight effects, allows for extensive personalization and visually stunning effects. The customization is supported by software that lets you tailor the lighting to your preferences. Keycaps: Premium Double-Shot ABS Keycaps: Designed for durability and longevity, the double-shot molding process ensures the legends on the keys won't fade over time, providing a smooth and reliable typing experience. Switches: Swappable Blue Optical Switches: Known for their tactile and audible feedback, these switches are great for both typing and gaming. The swappable nature allows for easy customization or replacement of switches. Anti-Ghosting: All Key Anti-Ghosting: Ensures every keypress is registered accurately, even when multiple keys are pressed simultaneously, preventing input conflicts during intense gaming sessions. Macro Support: Customizable Macros: Program complex sequences of commands to streamline repetitive tasks or enhance in-game performance. This feature is particularly useful for gamers who need quick execution of actions. Compact Design: 87-Key Layout: Offers a compact and streamlined design without sacrificing essential keys, saving desk space and enhancing portability. Software Support: Windows-Compatible Software: The included software allows for easy customization of RGB lighting, macros, and key functions, providing an intuitive interface for tailoring the keyboard to your needs. Overall Performance: The Cosmic Byte Trinity Optical Swappable Blue Switch Wireless Keyboard stands out for its versatility, durability, and customization options. The combination of triple connectivity modes and a long-lasting battery makes it highly adaptable to various scenarios, while the per-key RGB lighting and robust software support enable a highly personalized user experience. The premium build quality, highlighted by the double-shot ABS keycaps and swappable switches, ensures reliability and longevity, making it a solid choice for both gamers and professionals.
Review: The keyboard is okay u can go for it but first read the review - it can be value for money if it cost u under 2500 otherwise its not worth it according to the price bracket its quality is fine keyboard size is good for gaming keep in mind that its 75% layout keyboard keyboard functionaltiy is also good also the software that shoould be downloaded with this keyboard is also not nice but it can help you . My final advice is that u can go for it but main drawback is software rgb is also good no flaws there if u like blue switches then go for it without thinking

## Features

- Tri Mode Keyboard- The keyboard supports 2.4Ghz Wireless Dongle, 3 Bluetooth Devices and Wired Mode which can be easily switched using the keyboard shortcuts.
- CB Optical Blue Switch- Optical switches work at the speed of light. They are extremely fast compared to traditional mechanical switches and with zero Latency.
- Quieter Operation- Optical switches are generally quieter than traditional mechanical switches and feel very good to type due to lack of mechanical parts.
- Spectra Per Key RGB- Choose from 16.8 million colors with unlimited possibilities to customize the keyboard and make it your own.
- Software Support- Trinity keyboard has Windows software support for Macros, Customization, LED effects.
- 100 Million Switch Life: Optical Switches last longer than mechanical switches boasting a long 100 million switch life.
- Warranty- The keyboard comes with 1 Year warranty from Cosmic Byte. With the large network of service centers in India and door pickup service you can rest assured for an hazzle free experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CXSYBKW3 |
| Antenna Location | Business, Gaming, Multimedia |
| Best Sellers Rank | #6,989 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #96 in Gaming Keyboards |
| Brand | Cosmic Byte |
| Brand Name | Cosmic Byte |
| Button Quantity | 87 |
| Colour | Black |
| Compatible Devices | Laptop, PC |
| Connectivity Technology | Wireless |
| Country of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 100 Reviews |
| Enclosure Material | Plastic |
| Hand Orientation | Ambidextrous |
| Importer Contact Information | Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi, Pune 412308, Maharashtra, India |
| Item Dimensions L x W x H | 8L x 15W x 4H Centimeters |
| Item Type Name | Keyboard |
| Item Weight Unit of Measure | 900 Grams |
| Keyboard Description | Optical |
| Keyboard Layout | QWERTY |
| Manufacturer | Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi, Pune 412308, Maharashtra, India, Cosmic Byte, 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 |
| Mechanical Keyboard Switch Model | CB Optical Blue Switch |
| Model Name | CB-GK-39 Trinity |
| Model Number | CB-GK-39 Trinity |
| 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, Hot-Swappable, Rechargeable |
| Recommended Uses For Product | Business, Gaming, Multimedia |
| Special Feature | Backlit, Ergonomic, Hot-Swappable , Rechargeable |
| Style Name | Wireless 3 Modes |
| Switch Type | Clicky |
| Total USB 2.0 Ports | 1 |
| Unit Count | 1.00 Count |
| Warranty Description | 1 Year Warranty against Manufacturing Defects |

## Product Details

- **Brand:** Cosmic Byte
- **Compatible Devices:** Laptop, PC
- **Connectivity Technology:** Wireless
- **Keyboard Description:** Mechanical
- **Recommended Uses For Product:** Multimedia, Gaming, Business

## Images

![CB-GK-39 Trinity 3 Modes WiFi + Bluetooth + Wired Optical Swappable Blue Switch Keyboard, Per Key RGB, 100 Million Life Switches, 3000mAh Battery, Fast Response, Software Support (Black) - Image 1](https://m.media-amazon.com/images/I/610SJq+2jDL.jpg)
![CB-GK-39 Trinity 3 Modes WiFi + Bluetooth + Wired Optical Swappable Blue Switch Keyboard, Per Key RGB, 100 Million Life Switches, 3000mAh Battery, Fast Response, Software Support (Black) - Image 2](https://m.media-amazon.com/images/I/71F7FXs+eSL.jpg)
![CB-GK-39 Trinity 3 Modes WiFi + Bluetooth + Wired Optical Swappable Blue Switch Keyboard, Per Key RGB, 100 Million Life Switches, 3000mAh Battery, Fast Response, Software Support (Black) - Image 3](https://m.media-amazon.com/images/I/71+AQY+1ZqL.jpg)
![CB-GK-39 Trinity 3 Modes WiFi + Bluetooth + Wired Optical Swappable Blue Switch Keyboard, Per Key RGB, 100 Million Life Switches, 3000mAh Battery, Fast Response, Software Support (Black) - Image 4](https://m.media-amazon.com/images/I/61ITqhqEeBL.jpg)
![CB-GK-39 Trinity 3 Modes WiFi + Bluetooth + Wired Optical Swappable Blue Switch Keyboard, Per Key RGB, 100 Million Life Switches, 3000mAh Battery, Fast Response, Software Support (Black) - Image 5](https://m.media-amazon.com/images/I/71zfSyMWJCL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ "As a professional gamer, I demand the best equipment, and this gaming keyboard delivers.
*by N***E on 20 May 2024*

Key Features: Triple Connectivity Modes: WiFi, Bluetooth, and Wired: Offers versatile connectivity options to seamlessly switch between devices and ensure stable connections, whether you're gaming, working, or just browsing. Battery Life: 3000mAh Rechargeable Battery: Provides long-lasting power, reducing the need for frequent recharges and ensuring uninterrupted usage during extended sessions. RGB Lighting: 16.8 Million Spectra RGB with Per Key Customization: Each key can be individually lit with one of 16.8 million colors. This feature, coupled with the 19 different backlight effects, allows for extensive personalization and visually stunning effects. The customization is supported by software that lets you tailor the lighting to your preferences. Keycaps: Premium Double-Shot ABS Keycaps: Designed for durability and longevity, the double-shot molding process ensures the legends on the keys won't fade over time, providing a smooth and reliable typing experience. Switches: Swappable Blue Optical Switches: Known for their tactile and audible feedback, these switches are great for both typing and gaming. The swappable nature allows for easy customization or replacement of switches. Anti-Ghosting: All Key Anti-Ghosting: Ensures every keypress is registered accurately, even when multiple keys are pressed simultaneously, preventing input conflicts during intense gaming sessions. Macro Support: Customizable Macros: Program complex sequences of commands to streamline repetitive tasks or enhance in-game performance. This feature is particularly useful for gamers who need quick execution of actions. Compact Design: 87-Key Layout: Offers a compact and streamlined design without sacrificing essential keys, saving desk space and enhancing portability. Software Support: Windows-Compatible Software: The included software allows for easy customization of RGB lighting, macros, and key functions, providing an intuitive interface for tailoring the keyboard to your needs. Overall Performance: The Cosmic Byte Trinity Optical Swappable Blue Switch Wireless Keyboard stands out for its versatility, durability, and customization options. The combination of triple connectivity modes and a long-lasting battery makes it highly adaptable to various scenarios, while the per-key RGB lighting and robust software support enable a highly personalized user experience. The premium build quality, highlighted by the double-shot ABS keycaps and swappable switches, ensures reliability and longevity, making it a solid choice for both gamers and professionals.

### ⭐⭐⭐⭐ The keyboard is okay u can go for it but first read the review
*by D***R on 29 January 2025*

it can be value for money if it cost u under 2500 otherwise its not worth it according to the price bracket its quality is fine keyboard size is good for gaming keep in mind that its 75% layout keyboard keyboard functionaltiy is also good also the software that shoould be downloaded with this keyboard is also not nice but it can help you . My final advice is that u can go for it but main drawback is software rgb is also good no flaws there if u like blue switches then go for it without thinking

### ⭐⭐⭐⭐⭐ Best keyboard! Don't hesitate to buy. All features working, aesthetic look.
*by O***R on 11 May 2024*

* USB, Bluetooth, and WiFi connectivity * Feels good when you press the keys * Portable size * A premium built feel and finish * No lag and no error if used within range * RGB lighting is decent and adds to the ambience of your setup * One of the best at this price range

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-05-01*