1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your MSI Forge GK300 Combo, which includes the GK300 mechanical gaming keyboard and the GM300 optical gaming mouse. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

Image 1.1: The MSI Forge GK300 Combo, featuring the GK300 keyboard and GM300 mouse, shown both in and out of its retail packaging.
2. Package Contents
Verify that all items listed below are present in your product package:
- MSI Forge GK300 Mechanical Gaming Keyboard
- MSI Forge GM300 Optical Gaming Mouse
- User Manual (this document)
3. Setup Guide
Follow these steps to set up your MSI Forge GK300 Combo:
- Connect the Keyboard: Locate an available USB port on your computer. Plug the USB connector of the MSI Forge GK300 Keyboard into the USB port.
- Connect the Mouse: Locate another available USB port on your computer. Plug the USB connector of the MSI Forge GM300 Mouse into the USB port.
- Driver Installation: The keyboard and mouse are plug-and-play devices. Your operating system (Windows 10 and above) should automatically detect and install the necessary drivers. No additional software installation is required for basic functionality.
- Verification: Once connected, the devices should light up, indicating they are powered. Test the keyboard by typing and the mouse by moving the cursor and clicking.

Image 3.1: The MSI Forge GK300 keyboard and GM300 mouse connected and ready for use.
4. Operating Instructions
4.1. MSI Forge GK300 Keyboard Operation
The GK300 keyboard features mechanical blue switches and RGB backlighting. It is designed for responsive typing and gaming.
- Standard Typing: Use the keys as you would with any standard keyboard.
- Anti-Ghosting: The keyboard supports up to 26-key anti-ghosting, allowing multiple simultaneous key presses to be registered accurately, which is beneficial for gaming.
- RGB Backlighting: The keyboard features static RGB backlighting with several preset patterns. These patterns can typically be cycled through using specific function key combinations (e.g., Fn + Insert, Home, Page Up, Delete, End, Page Down). Refer to the keyboard's keycap legends for specific lighting control functions.
- Multimedia Hotkeys: Access multimedia functions (play, pause, volume control) using the Fn key in combination with the F-keys (F1-F12).

Image 4.1: The MSI Forge GK300 keyboard displaying its RGB backlighting.
4.2. MSI Forge GM300 Mouse Operation
The GM300 mouse features an optical sensor with adjustable DPI settings and durable switches.
- Basic Functions: Left-click, right-click, and scroll wheel functions operate as standard.
- DPI Adjustment: The mouse has a dedicated DPI button, usually located behind the scroll wheel. Press this button to cycle through preset DPI levels (e.g., 1200, 2400, 4800, 7200 DPI). The current DPI setting may be indicated by the mouse's RGB lighting color or pattern.
- Side Buttons: The mouse includes side buttons, typically used for forward and backward navigation in web browsers or customizable functions in games.

Image 4.2: The MSI Forge GM300 mouse showcasing its ergonomic design and RGB lighting.
5. Key Features
- Anti-Ghosting: The GK300 keyboard supports up to 26-key anti-ghosting, ensuring that simultaneous key presses are registered accurately without conflicts.
- Mechanical Blue Switches: The GK300 keyboard is equipped with durable and dustproof mechanical blue switches, providing a tactile bump and an audible click for a distinct typing and gaming experience.
- Durable Mouse Switches: The GM300 mouse features main button switches rated for over 10 million clicks, ensuring long-term reliability for gaming and daily use.
- Precise Optical Sensor: The GM300 mouse incorporates an optical sensor capable of up to 7,200 DPI, delivering accurate and responsive tracking for various applications.
- RGB Lighting: Both the keyboard and mouse feature RGB lighting for aesthetic customization. Note that MSI Center software is not supported for advanced customization of this combo.

Image 5.1: An illustration highlighting the mechanical blue switches used in the MSI Forge GK300 keyboard, emphasizing their tactile and audible feedback.

Image 5.2: A visual representation of the precise optical sensor within the MSI Forge GM300 mouse, indicating its tracking capability.
6. Maintenance and Care
Proper maintenance ensures the longevity and performance of your devices.
- Cleaning the Keyboard: Use a soft, dry cloth to wipe the surface of the keyboard. For dust between keys, use compressed air. Avoid using liquid cleaners directly on the keyboard.
- Cleaning the Mouse: Wipe the mouse surface with a soft, slightly damp cloth. Ensure no liquid enters the device. Clean the optical sensor area periodically with a dry cotton swab to prevent tracking issues.
- Storage: When not in use for extended periods, store the devices in a clean, dry environment away from direct sunlight and extreme temperatures.
- Avoid Liquid Exposure: Do not expose the keyboard or mouse to liquids, as this can cause permanent damage.
7. Troubleshooting
If you encounter issues with your MSI Forge GK300 Combo, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard/Mouse not responding | Loose USB connection, faulty USB port, driver issue. |
|
| Keys not registering / Ghosting | Software conflict, physical obstruction, excessive simultaneous presses. |
|
| Mouse tracking issues | Dirty optical sensor, unsuitable surface, incorrect DPI setting. |
|
| RGB lighting not working | Lighting mode disabled, power issue. |
|
8. Product Specifications
| Feature | Detail |
|---|---|
| Brand | MSI |
| Model Number | GK300 (Keyboard), GM300 (Mouse) |
| Keyboard Type | Mechanical Gaming Keyboard |
| Keyboard Switches | Mechanical Blue Switches |
| Keyboard Anti-Ghosting | Up to 26-key |
| Mouse Sensor Type | Optical Sensor |
| Mouse DPI | Up to 7,200 DPI |
| Mouse Switch Durability | Over 10 Million Clicks |
| Connectivity | USB (Wired) |
| Hardware Platform | PC |
| Operating System Compatibility | Windows 10 and above |
| Item Weight | 2.7 pounds (combined) |
| Product Dimensions (LxWxH) | 23.4 x 7.3 x 2.1 inches (packaging/overall) |
| Color | Blue (design accent) |
9. Warranty and Support
MSI products are designed for reliability and performance. For warranty information and technical support, please refer to the official MSI website or contact their customer service directly.
- Warranty Information: Details regarding your product's warranty period and terms can be found on the MSI official website. Please retain your proof of purchase for warranty claims.
- Technical Support: For technical assistance, driver updates, or further inquiries, visit the MSI support page at www.msi.com/support.







