---
product_id: 38185767
title: "Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop"
brand: "a4tech"
price: "€ 191.30"
currency: EUR
in_stock: true
reviews_count: 4
category: "A4tech"
url: https://www.desertcart.pt/products/38185767-bloody-b820-optical-mechanical-gaming-keyboard-with-individually-backlit-rgb
store_origin: PT
region: Portugal
---

# 30x faster optical mechanical switches 13 dynamic RGB lighting modes Nano-coated water resistance with drain holes Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop

**Brand:** a4tech
**Price:** € 191.30
**Availability:** ✅ In Stock

## Summary

> 🌈 Elevate your desk game with speed, style, and spill-proof confidence!

## Quick Answers

- **What is this?** Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop by a4tech
- **How much does it cost?** € 191.30 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/38185767-bloody-b820-optical-mechanical-gaming-keyboard-with-individually-backlit-rgb)

## Best For

- a4tech enthusiasts

## Why This Product

- Trusted a4tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Brave Spills:** Nano-coating plus dedicated drain holes keep your keyboard battle-ready even when accidents happen.
- • **Premium Aluminum Build:** Sleek, minimalist aluminum-grade panels combine durability with a modern aesthetic that stands out on any desk.
- • **Vibrant RGB Customization:** Choose from 13 backlit modes and adjustable brightness to perfectly match your workspace or gaming setup’s vibe.
- • **Lightning-Fast Optical Switches:** Experience ultra-responsive typing with LK Blue switches, delivering 30x faster actuation than traditional mechanical keys.
- • **Universal Windows Compatibility:** Plug-and-play with all major Windows OS versions, ensuring seamless integration for work or play.

## Overview

The Bloody B820 is a wired, 104-key optical mechanical gaming keyboard featuring LK Blue switches (Cherry MX Blue equivalent) that actuate 30x faster than traditional mechanical switches. It boasts 13 customizable RGB backlighting modes, a durable aluminum-grade build, and nano-coating with drain holes for water resistance. Designed primarily for Windows PCs and laptops, it balances professional-grade performance with vibrant aesthetics, making it ideal for both gaming and office environments.

## Description

Buy Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop: Keyboards - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Let me start by saying I love this keyboard already - Let me start by saying I love this keyboard already. I have the LK Blue switches and they feel good. The keyboard itself feels pretty solid, although you can twist it if you try to. The metal faceplate is great, but the plastic sides and bottom is meh.The switches themselves feel good, with a satisfying click from each press and a noticeable bump as it comes down. They are a little soft for my tastes, but I'm sure that is easily changeable with some heavier springs. The RGB software is clunky and has a relatively steep learning curve when creating your own animations, but it works. I would like some more customization. For example, I love the mode that changes the key color when you press it. But, I want to change the base color and the color that the keys change to when pressed. The leds themselves don't seem to have a full range of colors (not as good as the Razer Chroma products, for example). There is a noticeable jump between each shade. You're not going to get 10+ shades of red. you're going to get maybe 3 shades and the 7 other shades are going to look identical to one of the 3 shades. They keycaps are fine if you like the font style, but it was too aggressive for my tastes. The stems of the switches seem to rattle in their housing, like if I take a keycap off I can wiggle the switch stem itself and hear a hollow plastic sound, but this obviously doesn't affect normal typing and is impossible to notice unless you're looking for it. The one things that I'm disappointed in is that the spacebar has a weird spacing of the outer two stems and makes it hard (maybe impossible?) to replace with normal keycap sets. Overall, would I buy this again? I I just wanted to be able to change colors to match my build, yeah, this is a great keyboard. If I wanted RGB madness with everything on rainbow, maybe fine something else. Is it worth $100 for what it is? Absolutely
Review: Worked for 1 year... - It was my first optical mechanical keyboard, and it was really great. It was fast, and I loved the sound of the keys. But after only one year, one of the keys popped out (check the image), and there is no way to up it back to its original place. I tried glue, but it wasn't the same anymore and after 2 weeks it popped out again. It clearly states "Each key lasts over 100 million press" on their description page, and I don't think I reached that in one year. Atfer contacting Bloody's support based in USA, one of the customer service team member confirmed they would send a new one for me. It has been 4 months since that email, and no response from him even after a few more mails from me. I am really disappointed in that brand, I regret recommending it to friends.

## Features

- RGB Mechanical gaming keyboard: Enjoy a Brilliant display of chroma lighting and premium double shot ABD keycap feel with Bloody’s B820 keyboard designed for the minimalist and built sturdy with aluminum grade panels.
- Optical Mechanical Blue Switches: Optical switches actuate 30x Faster then traditional mechanical switches. Our LK Blue switches (Cherry mx Blue equivalent) offer a smooth and linear tactile feel for quieter typing, ideal for office or gaming use.
- Water Resistant Gaming Keyboard: This optical mechanical gaming Keyboard comes fully nano coated to ensure that even when accidents happen it won’t keep you out of the fight. Dedicated drain holes at the back end of the keyboard help liquids flow clearly out of the keyboard housing.
- 13 Backlit Modes: Press FN+F8 to enter a verity of RGB LED adjustable lighting animations. Along with 7 single color backlit modes for your gaming keyboard. You can also adjust their brightness with FN + “↑ arrow” or “↓ arrow”.
- PC GAMING KEYBOARD COMPATIBILTY: Windows 10, Windows 8, Windows 7, Windows Vista, or Windows XP, Limited Mac OS keyboard support

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MS9E5UP |
| Best Sellers Rank | #4,622 in Computer Keyboards |
| Brand | A4tech |
| Color | LK Blue Switch |
| Customer Reviews | 4.4 4.4 out of 5 stars (31) |
| Date First Available | January 25, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 1.97 x 19.76 x 7.48 inches |
| Item Weight | 2.2 pounds |
| Item model number | B820R-LKRed |
| Manufacturer | A4Tech |
| National Stock Number | 0 |
| Operating System | Windows |
| Power Source | Corded Electric |
| Product Dimensions | 1.97 x 19.76 x 7.48 inches |

## Product Details

- **Brand:** A4tech
- **Color:** LK Blue Switch
- **Compatible Devices:** PC
- **Connectivity Technology:** Wired
- **Keyboard Description:** Gaming
- **Keyboard backlighting color support:** RGB
- **Material:** Acrylonitrile Butadiene Styrene
- **Recommended Uses For Product:** Office
- **Special Feature:** Lighting, Water Resistant
- **Style:** Modern

## Images

![Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop - Image 1](https://m.media-amazon.com/images/I/71lM1sGA3yL.jpg)
![Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop - Image 2](https://m.media-amazon.com/images/I/81KUtlGtx6L.jpg)
![Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop - Image 3](https://m.media-amazon.com/images/I/91uiHI3c1zL.jpg)
![Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop - Image 4](https://m.media-amazon.com/images/I/71sDLZ9INuL.jpg)
![Bloody B820 Optical Mechanical Gaming keyboard with individually backlit RGB LED keys Wired, 104 keys standard, Blue Switch - MX Blue Equivalent for windows PC and Laptop - Image 5](https://m.media-amazon.com/images/I/91-1rjff81L.jpg)

## Questions & Answers

**Q: How long is the usb cord?**
A: Hello Jay, It is 6ft long.

**Q: Amazon Red switch Don't you have any?**
A: At this time only blue switches are available in this model.

**Q: [g] [1] [a] [down arrow]  what is the indicator light for? i know one is for the num pad lock and one is for caps, but what is the [g] & [arrow] for?**
A: G = Game Mode (FN + F8)

1 = Number Lock

A = Caps Lock

Down Arrow = Screen Lock

**Q: Can anyone comment on how the keyboard has held up long term? Looks like this has been out a few years now.**
A: I have had mine for about 2 years now.  No problems have presented themselves during that period of time.  Very pleased with this keyboard.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Let me start by saying I love this keyboard already
*by F***T on August 1, 2017*

Let me start by saying I love this keyboard already. I have the LK Blue switches and they feel good. The keyboard itself feels pretty solid, although you can twist it if you try to. The metal faceplate is great, but the plastic sides and bottom is meh.The switches themselves feel good, with a satisfying click from each press and a noticeable bump as it comes down. They are a little soft for my tastes, but I'm sure that is easily changeable with some heavier springs. The RGB software is clunky and has a relatively steep learning curve when creating your own animations, but it works. I would like some more customization. For example, I love the mode that changes the key color when you press it. But, I want to change the base color and the color that the keys change to when pressed. The leds themselves don't seem to have a full range of colors (not as good as the Razer Chroma products, for example). There is a noticeable jump between each shade. You're not going to get 10+ shades of red. you're going to get maybe 3 shades and the 7 other shades are going to look identical to one of the 3 shades. They keycaps are fine if you like the font style, but it was too aggressive for my tastes. The stems of the switches seem to rattle in their housing, like if I take a keycap off I can wiggle the switch stem itself and hear a hollow plastic sound, but this obviously doesn't affect normal typing and is impossible to notice unless you're looking for it. The one things that I'm disappointed in is that the spacebar has a weird spacing of the outer two stems and makes it hard (maybe impossible?) to replace with normal keycap sets. Overall, would I buy this again? I I just wanted to be able to change colors to match my build, yeah, this is a great keyboard. If I wanted RGB madness with everything on rainbow, maybe fine something else. Is it worth $100 for what it is? Absolutely

### ⭐ Worked for 1 year...
*by M***L on March 8, 2020*

It was my first optical mechanical keyboard, and it was really great. It was fast, and I loved the sound of the keys. But after only one year, one of the keys popped out (check the image), and there is no way to up it back to its original place. I tried glue, but it wasn't the same anymore and after 2 weeks it popped out again. It clearly states "Each key lasts over 100 million press" on their description page, and I don't think I reached that in one year. Atfer contacting Bloody's support based in USA, one of the customer service team member confirmed they would send a new one for me. It has been 4 months since that email, and no response from him even after a few more mails from me. I am really disappointed in that brand, I regret recommending it to friends.

### ⭐⭐⭐⭐⭐ Amazing keyboard!
*by A***R on November 17, 2017*

This keyboard is phenomenal. I picked the blue "Machine Gun" switches and I absolutely love the satisfying clicky noises it makes while I type or game. I found that the actuation time is very fast compared to other keyboards I own and have tried. The response times are ridiculous. After testing this keyboard the "Number 1 fastest" claim may actually be true. Light is the fastest thing in the universe after all... The RGB lighting is amusing to look at and I often find myself staring at it. This keyboard is very worth its $100 price point. I do have some minor complaints though. The font is a bit unorthodox, the "wave" effect is a tad bit choppy, the software is a bit difficult to understand, and some macro buttons would be very useful. Overall, This keyboard is exemplary. The super satisfying clicks and super fast response times are things that the big boys such as Razer and Corsair better look out for. Bloody is thirsty for blood.

## Frequently Bought Together

- Bloody B820 Optical Mechanical Gaming Keyboard with Individually Backlit RGB LED Keys Wired, 104 Keys Standard, Blue Switch - MX Blue Equivalent for Windows PC and Laptop
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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-14*