1. Introduction and Overview
The Cherry MX Board 3.0 S is a high-performance wired mechanical keyboard designed for both gaming and office use. Featuring authentic Cherry MX Brown switches, it offers a slight clicky experience with precise actuation and fast input. The keyboard boasts a robust aluminum housing and customizable RGB backlighting, providing both durability and aesthetic appeal. Its full-size layout ensures comprehensive functionality for various tasks.

Figure 1: Cherry MX Board 3.0 S Mechanical Keyboard with vibrant RGB backlighting.
2. What's in the Box
- Cherry MX Board 3.0 S Mechanical Keyboard
- USB Cable (detachable, Mini-USB B connection)
3. Setup
- Connect the Keyboard: Locate the Mini-USB B port on the back of the keyboard. Connect the provided USB cable to this port and then plug the USB-A end into an available USB port on your computer (PC or laptop).

Figure 2: The detachable USB cable connects securely to the keyboard's rear port.
- Plug and Play: The keyboard is plug-and-play compatible with most operating systems. Your computer should automatically detect and install the necessary drivers.
- Install Software (Optional): For advanced customization of RGB lighting and key functions, download the official Cherry software from the Cherry website. This software allows for detailed control over lighting effects, macros, and more.
4. Operating Instructions
4.1 Basic Keyboard Functions
The Cherry MX Board 3.0 S functions as a standard full-size keyboard. All keys operate as expected for typing, navigation, and general computer use.
4.2 RGB Backlighting Customization
The keyboard features customizable RGB backlighting with 16.8 million colors and numerous integrated light effects. You can adjust these directly from the keyboard or through the dedicated software.
- On-Keyboard Controls: Use the function (Fn) key in combination with specific F-keys (e.g., F5-F12) to cycle through lighting modes, adjust brightness, and change colors. Refer to the keycap legends for specific combinations.
- Software Customization: The Cherry software provides a comprehensive interface to create custom lighting profiles, set individual key colors, and program complex lighting effects.

Figure 3: The keyboard displays a spectrum of RGB lighting effects, highlighting its customizable nature.
4.3 Adjustable Height
The keyboard's height can be adjusted using the included screw-in metal feet. Simply remove the small rubber feet from the base and screw in the taller metal feet for an elevated typing angle. This design ensures stability and durability compared to traditional flip-out plastic feet.

Figure 4: The robust screw-in metal feet provide stable and adjustable elevation for ergonomic comfort.
4.4 Key Switch Characteristics
This model features Cherry MX Brown switches, known for their tactile bump and slight clicky sound, offering a balanced experience for both typing and gaming.
Video 1: A demonstration of the sound profile of Cherry MX Brown switches, highlighting their tactile and slightly clicky feedback.
5. Maintenance
- Cleaning: Regularly clean the keyboard with a soft, dry cloth. For deeper cleaning, you may use compressed air to remove dust and debris from between the keycaps.
- Keycap Removal: If necessary, keycaps can be carefully removed for cleaning or replacement using a keycap puller (not included).
- Cable Care: Handle the detachable USB cable with care to prevent damage to the connectors.
6. Troubleshooting
- Keyboard Not Responding:
- Ensure the USB cable is securely connected to both the keyboard and the computer.
- Try connecting the keyboard to a different USB port on your computer.
- Restart your computer.
- Lighting Issues:
- Check the keyboard's brightness settings using the Fn key combinations.
- Ensure the Cherry software is installed and running correctly if you are using custom profiles.
- Update the keyboard firmware via the Cherry software if available.
- Keys Not Registering:
- Clean around the affected key to ensure no debris is obstructing the switch.
- If the issue persists, contact Cherry customer support.
7. Specifications
| Brand | Cherry |
| Model Number | G80-3874LXAUS-2 |
| Connectivity Technology | Mini USB (Wired) |
| Keyboard Description | Gaming, Mechanical |
| Key Switch Type | Cherry MX Brown (Tactile, Slight Clicky) |
| Backlighting | RGB (16.8 million colors) |
| Number of Keys | 104 |
| Housing Material | Aluminum |
| Item Weight | 2.86 pounds |
| Dimensions | 17.87 x 7.05 x 1.69 inches |
8. Warranty and Support
The Cherry MX Board 3.0 S comes with a standard manufacturer's warranty. For detailed warranty information, technical support, and frequently asked questions, please visit the official Cherry website or contact their customer service directly.
Official Cherry Store: Visit the Cherry Store on Amazon





