1. Introduction
This manual provides detailed instructions for the Redragon Usas K553 Mechanical Gaming Keyboard. It covers setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device. The K553 is designed for durability and responsiveness, featuring mechanical switches and adjustable red LED backlighting.

Figure 1: Redragon Usas K553 Mechanical Gaming Keyboard, showcasing its design and red LED backlighting.
2. Package Contents
Verify that all items are present in the package:
- Redragon Usas K553 Mechanical Gaming Keyboard
- User Manual (this document)
3. Setup
Follow these steps to set up your Redragon Usas K553 Mechanical Gaming Keyboard:
- Connect the Keyboard: Plug the USB connector of the keyboard into an available USB port on your computer.

Figure 2: Side view illustrating the integrated USB cable for connection.
- Driver Installation: The keyboard is plug-and-play and typically does not require additional drivers for basic functionality. Your operating system (Windows 10, 8, 7, Vista, XP or later) will automatically detect and install the necessary drivers.
- Placement: Place the keyboard on a stable, flat surface. Ensure adequate space for comfortable use.

Figure 3: Bottom view of the keyboard, highlighting the adjustable feet for ergonomic positioning.
4. Operating Instructions
4.1 Key Functions
The Redragon Usas K553 features 87 keys with mechanical switches designed for durability and responsiveness.
- Standard Keys: All standard alphanumeric and symbol keys function as expected.
- Multimedia Controls: 12 multimedia controls are integrated into the function keys (F1-F12). These are typically accessed by pressing the Fn key simultaneously with the desired function key. Refer to the keycaps for specific multimedia icons.
- Windows Key Lockout: This feature prevents accidental presses of the Windows key during gaming. To activate or deactivate, press Fn + Windows Key.

Figure 4: Top-down view of the keyboard, illustrating the key layout and function key assignments.
4.2 Backlighting
The keyboard features adjustable red LED backlighting.
- Brightness Adjustment: Use dedicated keys (often Fn + Up/Down Arrow or similar, check keycaps) to increase or decrease the backlight brightness.
- Breathing Effect: Activate or deactivate a breathing (pulsating) backlight effect using a specific key combination (refer to keycaps, typically Fn + Insert or similar).
- On/Off: The backlight can be turned completely on or off.
4.3 Special Features
- WASD and Arrow Key Swap: For specific applications or gaming preferences, the WASD keys can be swapped with the arrow keys. This function is typically activated by pressing Fn + W. Repeat the combination to revert to the standard layout.
5. Maintenance
Proper maintenance ensures the longevity and performance of your keyboard.
- Cleaning: Use a soft, dry cloth to wipe the surface of the keyboard. For dust between keys, use compressed air. If necessary, gently remove keycaps using a keycap puller (not included) for deeper cleaning. Ensure the keyboard is disconnected from the computer before cleaning.
- Splash Resistance: The keyboard features a splash-resistant design. In case of liquid spills, immediately disconnect the keyboard from your computer and allow it to dry completely before reconnecting. This design helps protect against minor splashes but is not fully waterproof.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
If you encounter issues with your Redragon Usas K553 keyboard, refer to the following common solutions:
| Problem | Solution |
|---|---|
| Keyboard is not responding. |
|
| Backlight is not working or is dim. |
|
| Keys are not registering or registering multiple times. |
|
| Windows key is disabled. |
|
7. Specifications
Key technical specifications for the Redragon Usas K553 Mechanical Gaming Keyboard:
| Feature | Detail |
|---|---|
| Brand | Redragon |
| Model | K553 Usas |
| Item Model Number | TSB226US |
| Colour | Black |
| Keyboard Description | Gaming |
| Special Feature | Backlit (Red LED) |
| Connectivity | Wired (USB) |
| Number of Keys | 87 |
| Switch Type | Custom Mechanical Switches (Outemu, similar to Cherry MX Green) |
| Anti-Ghosting | 100% Anti-Ghosting, Conflict-Free Keys |
| Keycaps | Double-shot injection molded |
| Construction | Heavy duty aluminum and ABS |
| Splash Resistant | Yes |
| Compatible Operating Systems | Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP or later |
| Product Dimensions (LxWxH) | 36.4 x 15.3 x 3.7 cm |
| Item Weight | 318 g |
8. Warranty and Support
The Redragon Usas K553 Mechanical Gaming Keyboard comes with a 1-year manufacturer warranty.
For technical support, warranty claims, or further assistance, please visit the official Redragon website or contact their customer service department.