---
product_id: 618192701
title: "Cosmic Byte 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: "S/.491"
currency: PEN
in_stock: true
reviews_count: 8
category: "Cosmic Byte"
url: https://www.desertcart.pe/products/618192701-cosmic-byte-cb-gk-39-trinity-3-modes-wifi-bluetooth
store_origin: PE
region: Peru
---

# Zero Latency Optical Switches Per-Key RGB Lighting 3 Modes Connectivity Cosmic Byte 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:** S/.491
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Cosmic Byte 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?** S/.491 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/618192701-cosmic-byte-cb-gk-39-trinity-3-modes-wifi-bluetooth)

## 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: Quality optical blue switch experience ! - Keyboard is sturdy. Blue switch optical keyboard is definitely a great experience compared to blue switch mechanical and red switch keyboards. 3 mode connections works seemlessly, just that switching options are bit complicated that involves remembering different key combinations. RGB function works fine, software download was pretty simple and easy, has some additional features which ofcourse we occasionally. Wireless dongle works fine, easy to switch between systems. Product registration is not required. Works fine in battery mode, RGB light switches off after sometime in battery mode compared to wired.(Ofcourse to save power). Type c wire is lengthy enough. Definitely a value for money product given these features comes in expensive if you compare other products.

## 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 | #23,104 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #190 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 69 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 |
| Manufacturer Part Number | CB-GK-39 Trinity |
| 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

![Cosmic Byte 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)
![Cosmic Byte 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)
![Cosmic Byte 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)
![Cosmic Byte 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)
![Cosmic Byte 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.

### ⭐⭐⭐⭐⭐ Quality optical blue switch experience !
*by G***R on 21 September 2024*

Keyboard is sturdy. Blue switch optical keyboard is definitely a great experience compared to blue switch mechanical and red switch keyboards. 3 mode connections works seemlessly, just that switching options are bit complicated that involves remembering different key combinations. RGB function works fine, software download was pretty simple and easy, has some additional features which ofcourse we occasionally. Wireless dongle works fine, easy to switch between systems. Product registration is not required. Works fine in battery mode, RGB light switches off after sometime in battery mode compared to wired.(Ofcourse to save power). Type c wire is lengthy enough. Definitely a value for money product given these features comes in expensive if you compare other products.

### ⭐ Bad Product, Terrible Customer Service
*by R***Y on 30 July 2024*

I wanted to love this keyboard, but ultimately I have to return it, as the product and the brand have too many problems. Before I tell you those, let's start with the pros though. PROS: 1. Typing on it feels satisfying. 2. The wireless connections (RF/BT) work well. CONS: 1. The keyboard software is far too glitchy. The software often doesn't recognize the keyboard even when connected by wire and in the wired mode. 2. When it does recognise the keyboard, it runs in a highly unresponsive manner, even though I'm running an AMD 5700G / 32 GB RAM @3200 MHz / RTX 3060 / Gen3 NVMe SSD. 3. The battery is too low. It offers only about 30 hours of mostly idle usage (connected, but mostly not being typed on). 4. The brightness of the backlight is quite dim, compared to my existing keyboard (mechanical). 5. MOST IMPORTANT: Each time I called customer service to try and resolve these issues, I was put in a queue to talk to wait for an agent. Which is fine. But after just ~5 minutes, customer service drops the call automatically after saying all agents are busy. This happened 5 times. At this point, I e-mailed them to arrange a callback. Their reply was to ask for the serial number and pictures of the keyboard. I just want to talk to a person to resolve my issues. There shouldn't be such a tedious procedure for this. Product: 3/10. Customer Service: 1/10. Average: 2/10 = 1/5. I would not recommend this to a friend.

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-06-09*